Before I start talking about everything else, let me tell you a little about myself. I have been working at Tire Rack since 2005.
I first visited the South Bend headquarters in 2003 as a customer looking to buy a set BMW wheels and tires. I was impressed with the showroom and test track, and I thought it would be fun to work here. That idea stayed with me, and within a couple years I joined the team.
Like most of us here, I am a car enthusiast. I really enjoy the tire testing we do here, especially the track tests, and it is fun to talk to enthusiasts from all over the country and around the world.
Before I start talking about everything else, let me tell you a little about myself. I have been working at Tire Rack since 2005.
The easy answer to this question is: winter tires! All specialized snow tires have traction on ice and snow that exceeds the best all-season tires.
How do you know which winter tire to choose? Typically, the Bridgestone Blizzaks have been class leaders in ice and snow traction. Since their introduction in 1993, we haven't found an all-season tire that can match the Blizzak's confidence-inspiring combination of deep snow, packed snow and ice traction.
Blizzak tires feature dual tread compounds consisting of outer tread cap and underlying base compounds. These tires wick away the thin layer of water that often develops on the top of packed snow and icy roads, allowing biting edges to better adhere to the surface for more traction.
However, competitors are offering even tougher competitors to the Blizzak line. For example, Michelin's X-Ice Xi3 gave a strong challenge to the Blizzak WS70 last year. It offers a good blend of traction and road manners. It also meets Michelin's Green X standard for low rolling resistance by reducing vehicle fuel consumption and emissions from CO2 gases.
When considering winter tire options this year, be sure to take a look at the new Blizzak WS80. We had a chance to take part in an introductory test pitting it against its rival from Michelin. For a complete recap of the test, read "Bridgestone Blizzak WS80 Introductory Test Report."
When purchasing winter tires, also be sure to consider a dedicated set of wheels.
Many customers call in asking what's the difference between the Pirelli Cinturato P7 All Season and Cinturato P7 All Season Plus. The tread pattern is the same. They are both all-season tires. They are usually offered in the same speed ratings. So, what makes the "Plus" a distinct model?
Pirelli Cinturato P7 All Season
Pirelli Cinturato P7 All Season Plus
The key difference is in the compound - compared to the Cinturato P7 All Season, the Cinturato P7 All Season Plus has longer treadlife. It is also developed to be environmentally friendly with Pirelli's EcoImpact icons confirming the tire's contribution to the environment with regards to energy efficiency, clean air, low noise and long wear. Cinturato P7 All Season Plus tires offer lower weight, less rolling resistance and reduced noise while enhancing wet braking and year-round traction, even in light snow.
Environmental friendliness, safety and performance are essential features designed into many Pirelli tires. Their innovative compounds, internal structures and tread patterns are designed to lower vehicle fuel consumption and carbon dioxide emissions, while providing longer tire wear without compromising performance. Pirelli's green performance strategy has developed new production systems that reduce environmental impact and energy consumption while focusing on quality and safety. This has resulted in lowering factory water consumption levels, energy use and emissions.
For more information on Pirelli's green performance strategy, read "Pirelli EcoImpact."
Summer testing is in full swing at Tire Rack, and the first test report for the new Continental TrueContact have been published. This new Standard Touring All-Season tire hit all the right notes with a smooth, quiet ride and solid wet and dry traction.
During our test, we put the tire up against the Firestone Precision Touring, Goodyear Assurance TripleTred All-Season and Michelin Defender. In the abrupt maneuvers portion of the test on our track in dry conditions, all four options performed well and with nearly identical results in stopping distance, cornering traction and average lap time.
We liked the TrueContact's tight handling, to go along with its slight edge in observed fuel economy. With its well-rounded character, the TrueContact took top honors in a very competitive test group. A couple of highlights from our testers include:
"The ride of the Continental TrueContact can be best described as taut and well controlled without being harsh."
"Wet weather traction is a bigger separator than dry. And in this test group, the TrueContact showed a noticeable advantage in overall traction and stability during the wet handling test."
For a complete recap of our test, check out "Testing Passenger and Standard Touring All-Season Tires: Which Are Truly More Than Just Round and Black?"
Many drivers are uncertain whether they can put non-run-flat tires on wheels that originally came with run-flat tires. The short answer: yes.
Run-flat tires and regular tires that are the same numeric size will have the same physical dimensions, and can fit properly on the same wheels. The only difference with run-flat wheels is they usually have an extra hump behind the bead seat. This hump would help keep the run-flat tire in its proper place on the wheel while driving without air pressure. It does not affect the performance or compatibility of the non-run-flat tire.
A few words of caution: If you are changing to non-run-flat tires from run-flat tires, make sure you have a plan for what you will do in the event that you do have a flat tire. An air compressor and sealant can easily seal a minor puncture. A plug kit can also be useful for a temporary repair. You should have some sort of roadside assistance that you can call if you have a larger puncture. Some cars may have space to store a spare tire, though some cars with run-flats do not have any convenient location for the tire.
If a spare tire is an option, remember that you should maneuver more cautiously when your vehicle is equipped with a Temporary/Compact Spare tire and three standard tires. Any differences in tire traction can reduce vehicle handling and increase braking distances, especially in emergency situations.
Whether you're looking for a set of non-run-flat or run-flat tires, shop by vehicle and view all options available for your application.
We're glad to announce the opening of our newest distribution center in Denver, Colorado. After months of preparation, our staff is ready to take orders which will improve delivery times and inventory availability for the western part of the country.
If you reside in the Denver area, you're welcome to place an order for pick-up. Take a look at the contact information page to view a map to help you locate the distribution center for picking up your order.
Additional Denver distribution center information:
- Address: 9690 East 40th Avenue, Denver, CO 80238
- Phone: Please contact our headquarters for assistance with your order at (800)-428-8355.
- Hours: 8:00 a.m. to 5:00 p.m. (MST) Monday through Friday
- Installation is not available at this location. Orders are for pick-up only.
For more information on the Denver distribution center, view here.
A punctured tire is never a joyous occasion, but if it can be repaired, the hassle and expense are often minimal. Some factors are beyond a driver's control, however there are steps that you can take to maximize the chances that a flat can be repaired.
Aside from blowouts and large gashes in the tire that are obviously not repairable, there are three main factors that determine if a tire can be fixed:
- The size of the puncture.
- The location of the puncture.
- Whether the tire was driven on while flat.
With regard to size, if the puncture is 1/4" diameter or smaller, it may be repairable. If the hole is larger than 1/4", replacement is required.
As far as location is concerned, punctures in the tread area of the tire are often repairable. Punctures in the sidewall or shoulder of the tire are not. While it may be physically possible to plug the hole, the flexing of the sidewall is likely to work the repair loose.
Driving on the flat tire is the biggest item under the driver's control. Driving even a short distance on a tire that has lost pressure can leave it unfit for future service, even if the actual puncture is perfectly repairable. Damage to the sidewall from running without air pressure makes the tire unsafe for future use. For detailed information on repairable and non-repairable punctures, read "Flat Tire Repairs - Past the Point of No Return."
If you hope to save the tire, stop immediately when you have a flat as long as it's safe to do so. If the tire looks like it can be repaired, change to the spare, make a temporary repair to re-inflate the tire or have the car towed to a service location. Then make sure to have the tire properly repaired with both a patch and plug.
Are you heading to your first driving school or lapping day? Or are you already a track veteran who's looking to go even faster? Whenever you go to the track, having the right set of tires is essential to going fast, being safe and having fun.
What type of tires do you need to bring for a track event? Depends on the type of event, the expected conditions and the resources available to you.
Take a look at your available options:
Some people run their cars on the track with the same tires they use on the street. If you're already driving high performance tires, that set may work for you on the track. This scenario works best when you're attending beginner driving schools, casual lapping days or other events where the focus is more on polishing your skills rather than setting fast lap times. Street tires are not recommended for track use, and driving them in a track environment will most likely void their warranty. Keep in mind that if you overdrive them into corners, you could easily render them useless after only one day at the track. An example of this type of tire is the Michelin Pilot Super Sport.
Pros of Running Street Tires:
- Can drive to the track safely.
- Most street tires perform well in the rain.
Cons of Running Street Tires:
- Performance - These tires aren't as fast in dry conditions as track tires.
- Getting home - What happens if you lose a tire on the track? Do you have an option for getting home?
Extreme Performance Tires
These options are really a subset of street tires, but they're designed to take the abuse of occasional track days. They have more focus on dry traction and responsive handling. Extreme performance tires can be used on an enthusiast oriented daily driver, or mounted on separate wheels for track use. An example of this tire is the Yokohama ADVAN Neova AD08 R.
Pros of Extreme Performance Tires:
- Grip - Better performance than regular street tires.
- Value - Last longer at the track than normal street tires.
Cons of Extreme Performance Tires:
- Competition - Drivers are at a disadvantage compared to drivers who use dedicated track tires.
Streetable Track Tires
There are some tires that are essentially track tires, but can be driven to and from the track. They would wear out very quickly if driven daily on the street. These tires will generally have enough tread pattern to handle damp pavement, but will be very prone to hydroplaning. An example of this type of tire is the Pirelli P Zero Trofeo.
Pros of Streetable Track Tires:
- Grip - These tires will outgrip extreme performance tires.
- Convenient - If you can swap wheels at home, but your car won't carry a second set of wheels to the track, this can be the perfect solution.
- Versatility - Some of these tires can work as an intermediate tire for damp or drying track conditions.
Cons of Streetable Track Tires:
- Give up a little grip compared to the most specialized options.
- Few miles of use as a street tire.
- Hydroplaning can be an issue if caught in the rain.
Specialized Track Tires
Track tires provide the ultimate in grip. They discard most streetability characteristics in order to deliver the very best lap times. With lots of grip and shoulders that are generally more square, these tires can be more challenging to drive at their limits. They should be mounted on separate wheels and installed at the track. An example of this type of tire is the Hoosier A7.
Pros of Track Tires:
- Performance - If you are racing to win, track tires are the way to go.
- Easiest way to turn faster lap times.
Cons of Track Tires:
- Track tires won't work in the rain. You need a separate set if rain is a possibility.
- More challenging to drive at the limit.
- Often requires suspension modification or a specialized set-up.
Recently, our tire testers got the opportunity to drive on Continental's ContiForceContact, a new entry into the Streetable Track & Competition performance category. While this option isn't quite a racing slick, it's definitely built with the track in mind. This class of tire allows an enthusiast to drive his or her car to the track and then compete in the event on the same set of tires.
The ContiForceContact was matched up against some stiff competition in the Michelin Pilot Sport Cup and Toyo Proxes R888. It displayed impressive levels of grip and handling, and unusually good wet weather traction for the category. Progressive breakaway and neutral handling balance made this tire very driver-friendly. This tire can thrill you during hot laps with its precise handling and confidence-inspiring demeanor, while still being able to get you to and from the track, rain or shine.
While Streetable Track & Competition tires aren't for everyone, they are for drivers who want to get more from their car at the track than even the most capable road tire can delivery. Developed at the world famous Nurburgring circuit, the Continental ContiForceContact brings together Continental's racing and passenger car tire technologies.
For a complete recap of our test, read "Continental ContiForceContact: Track Day Magic."
Springtime at Tire Rack means it's time for the annual One Lap of America challenge. Inspired by the legendary Cannonball Run, this year marks the 31st running of the event. The 2014 schedule consists of 3,200 miles of driving and 19 timed events over the course of eight days.
Besides the page on our site that features details about this year's incarnation of One Lap, we'll also be posting updates on Facebook.
To take part in this grueling test, contestants equip their vehicles with some of the stickiest street tires available, typically from the Max Performance Summer and Extreme Performance Summer performance categories. Cars, drivers and tires will be tested over a wide range of conditions and events, so they'll need to display consistency, versatility and durability.
If you were entered into the event, what tires would you install on your vehicle?
What does "UTQG" stand for? Uniform Tire Quality Grade. It consists of a numeric treadwear rating, a letter traction rating and a letter temperature rating.
Should I use these ratings to decide what tire is best? Short answer: No. While they contain some useful information, UTQG ratings are generally not sufficient to judge the actual quality of a tire. This is especially true of the treadwear rating. The treadwear number is determined by the tire manufacturer. Each uses their own scale, and they have a surprising amount of leeway when setting the wear number.
If the treadwear number is lower, does that mean the tire has more grip? Not necessarily. Advances in compounding have allowed manufacturers to increase both treadwear and traction compared to older models. Assuming that a tire with a lower treadwear rating has better traction is like assuming that a car with worse fuel economy has more power. It is sometimes true, but not always the case.
What about traction rating? The traction rating only determines traction under one specific condition (locked-wheel braking on wet pavement). UTQG traction tests do not evaluate dry braking, dry cornering, wet cornering or high speed hydroplaning resistance.
If I live in a hot climate, should I be looking for an "A" temperature rating? Only if you plan to drive at high speeds. The testing for this rating is designed to evaluate the tires ability to withstand heat buildup caused by high speed operation. It does not accurately assess how well or poorly a tire will fare with regards to high ambient temperature. Tires with an "A" rating can exceed 115 mph in the lab test. Tires with a "B" rating can attain speeds between 100 and 115 mph. And tires with a "C" rating can reach speeds between 85 and 100 mph without failure. These ratings are similar to the speed ratings given to tires, though the methodology isn't identical.
Where can I go for more details about the methodology and ratings involved in UTQG testing? For more details and tables about testing procedure and ratings, read "Uniform Tire Quality Grade (UTQG) Standards."
Dunlop recently replaced the popular (but aging) Direzza DZ101. The new model, Direzza DZ102, retains a similar sporty look to the DZ101 while providing enhanced performance. The DZ102 keeps a similar price-point, making it a very good option for drivers seeking an affordable performance tire.
Direzza DZ102 tires combine sleek styling and impressive handling to deliver head-turning performance in warm, dry and wet conditions. It features a specially formulated Silicarbon Matrix compound (combines silica and carbon black) to enhance traction. This compound is molded into a directional tread design featuring broad shoulder blocks and three notched central ribs to promote responsive handling and stable cornering.
While we haven't tested this tire yet, the initial reviews look good. Take a look at what one customer writes:
"So far I think they are great, road noise is comfortable and what I expected coming from the DZ101. Going through turns I felt the sidewalls held up nicely, the ride was very compliant and felt precise to me. Bottom line, I would recommend them to a friend."
Be on the look for upcoming test results to see how this tire compares to other options in the Ultra High Performance Summer category.
Here in South Bend, Indiana we are nearly thawed out from a brutal winter and it is time to start considering what tires to run this summer. For enthusiasts with cars that are driven on the street as opposed to the track, this usually means selecting a tire from our Max Performance Summer category. Max Performance Summer tires feature advanced ultra low profile, high speed options that combine computer developed designs and unique materials with precision manufacturing techniques to provide an unsurpassed blend of dry and wet traction and handling.
If you're shopping for a set of tires from this performance category, here are your top picks:
King of the Hill: Michelin Pilot Super Sport
The Pilot Super Sport does everything well: wet traction, dry traction, steering response, braking and even treadlife is better than average for the category. This tire is designed to allow sports cars, sporty coupes, performance sedans and supercars to achieve their full potential in dry and wet conditions. Michelin Pilot Super Sport tires are competitively priced and usually cheaper than the previous generation Pilot Sport PS2.
Top Tier Value: Bridgestone S-04 Pole Position
The Bridgestone S-04 Pole Position is a leading member of the most recent generation of Max Performance Summer tires. While their raw grip is not quite equal to the Michelin Pilot Super Sport, they have excellent traction in wet and dry conditions, are extremely stable and provide confident handling. Bridgestone has been pricing them very aggressively, and in some sizes, you'd almost be crazy not to buy a tire this good at such a low price.
Lots of Grip, Not Yet Hyped: Yokohama ADVAN Sport V105
If you're the type of enthusiast who likes to do things a little differently from the rest, this may be the tire for you. The Yokohama ADVAN Sport V105 has not yet made a big splash in the marketplace, but it has exceptional grip. I'm also a fan of the responsive handling that its stiff sidewalls provide. To see how the tire performed during our in-house test, read "New Yokohama ADVAN Sport V105 Tested."
View all Max Performance Summer tires we offer and find the one that will make your summer driving a blast!
Continental has brought their Streetable Track & Competition tire, the ContiForceContact, over from Europe. Developed at the world famous Nürburgring circuit, the ContiForceContact is built to deliver extremely high levels of dry traction along with precise steering response and predictable cornering behavior. It is designed to allow driving on the street, though caution should be taken when driving in heavy rain. While it is built to resist hydroplaning, the tire is not recommended for high-speed driving on extremely wet roads/tracks with standing water where there is the risk of hydroplaning.
The ContiForceContact competes with other Streetable Track & Competition tires such as the Michelin Pilot Sport Cup and Pirelli P Zero Corsa System. It offers exceptional performance at the track while allowing drivers to drive to and from the track without changing their wheels and tires. With a treadwear rating of 80, the ContiForceContact isn't intended for long service on the road. The tire would work best on a set of wheels used for track days and performance driving events, or on a second car that is driven primarily for fun.
ContiForceContact tires are molded with approximately 6/32" of tread depth in their grooves and are left unshaved for use on damp tracks. While the tires do not require shaving for dry track use, their durability and lap time performance will improve if shaved to approximately 4/32" deep tread to begin competitive road racing/track use in dry conditions, however this will sacrifice treadlife.
To learn more about tire shaving as an effective means of permitting more of a tire's performance capability, read "Shaving Tires for Autocross / Track Use / Competition."
Customers often ask me about the Sumitomo brand. The tires are often very attractively priced, but many drivers are not as familiar with this brand as they are with some of the traditional names like Goodyear and Michelin. Are they really a great value, or are they too good of a price to be true?
How is Sumitomo pronounced?
This one stumps many people, however the pronunciation is actually easier than it looks at first glance. I find that breaking it in half makes it much easier. "Sumi" is pronounced pretty much how it looks: soo-me. It rhymes with Zoomy. Then the second half, "tomo" rhymes with Romo.
Where do they come from?
Sumitomo is a Japanese company. They're part of the Sumitomo Group, which has many diverse businesses under its umbrella. Sumitomo manufactures in a number of Asian countries, including Thailand, China and Japan.
Are they good?
Yes, Sumitomo makes a good tire. Like any manufacturer, Sumitomo makes a number of different models to fit different driving styles and customer needs. Are you in the market for high performance handling and excellent wet and dry traction? Try the Sumitomo HTR Z III. Do you need something a little bit sporty, but with the ability to handle cold weather and some light snow? Sumitomo's HTR A/S P01 might fit your needs. As long as you choose a tire that suits your application and driving style, they offer a very good combination of quality and value.
Why haven't I heard of them before?
You probably have and don't know it. Sumitomo builds tires for other brands as well. The most notable is Dunlop, which is one of the oldest names in the business. They do not do as much marketing of their own tire brand compared to many of the other brands. So while they fly a little bit under the radar, they have plenty of expertise in building tires.
Take a look at all offerings available from Sumitomo.
For many customers, having a tire that rolls down the road in a quiet and civilized manner is very important. If you're logging many miles, especially cruising along on highways and interstates, tire noise that's only slightly annoying around town can quickly become monotonous. So one of the questions we are frequently asked is, "What are the quietest tires for my car?"
If the Michelin Primacy MXV4 is a fit for your vehicle, the tire is a great and quiet option. It has done very well in our testing, including earning top marks for quietness while driving on our road loop. Among our customers, it has maintained exceptionally high ratings for both quietness and ride comfort. With just shy of 20 million miles worth of survey data, its 8.8 out of 10 survey average for quietness is exceptionally good. The tire provides drivers with an all around luxury option.
Available in a wide variety of popular sizes and typically carrying an H- or V- speed rating, the Primacy MXV4 will fit most passenger cars on the road today. If you're looking for a quiet tire, shop by vehicle to see if the Michelin Primacy MXV4 is available for your application.
I often get asked when an item listed on "Back Order" will be available. When we list it this way instead of with an estimated date, it means that the manufacturer has been unable to give us an estimate of when the item will be back in stock.
If you're willing to wait to receive the back ordered item, then it makes sense to place an order. When the item comes in stock, orders will be filled in the order that they were placed. There are times when the first shipments we receive are limited quantity, so putting your order in early can sometimes mean that you will receive the item sooner than if you just wait to see when it shows up as "In Stock."
We will touch base approximately once a month to advise on the status of a back order. With the ETA being uncertain, we understand that your circumstances may change, or that the wait might end up taking longer than what can work for you. You are always free to cancel a back order or to change to an item that is more readily available.
For more information on an item being on back order, visit this page from our website.
With the trend for larger wheel diameters, it can be hard to find tires for some of the classic vehicles that used small-diameter wheels. The legendary MINI is a victim of this trend, with virtually no tires available in its usual 10" wheel diameter.
However, there is still at least one excellent option for enthusiast owners: the Yokohama A008. This sticky, handling-oriented tire will enhance the sporting character of your classic MINI. Currently available in the 165/70R10 size with an H-speed rating, this tire is perfect for any sporty driving, including some track and autocross use.
The A008 has been very well liked by the enthusiasts who have installed a set on their vehicle. See what drivers are saying about their experience with the tire.
"These tires are brilliant. The car was transformed, and handles significantly better on the tires these replaced, or my recollection of any MINI tires I had run in the past. Overall, I don't believe there is a better choice for a Classic MINI (unless snows are required)!" -- Tire Rack Consumer Review, 1978 MINI Classic
"Very good tire. It performs well on this little car!" -- Tire Rack Consumer Review, 1978 MINI
"Great tire with lots of good stickiness. Grip is very good. The soft compound makes for good ease into long sweeping curves. 100 predictable!" -- Tire Rack Consumer Review, 2002 MINI Cooper Standard
If you have an old MINI sitting in the garage on aged, dried out tires, breathe some new life into it with a fresh set of sticky tires and rediscover how much fun it can be.
Whether you're traveling across town or cross-country, it's always good to have some basic supplies to deal with roadside emergencies. If you don't already have them, the Accutire Excursion Road Kit is an excellent all-in-one solution.
It features an emergency warning triangle, jumper cables, air compressor, first aid supplies, gloves, duct tape, cable ties, hand-charged flashlights (no need to worry about a dead battery if it sat unused for years) and basic hand tools. View a complete list of what the kit includes here.
A basic set of tools like this can be a big help if you encounter any mishap on the road. Trim or bodywork coming loose? Duct tape and zip ties may hold it in place until you get somewhere for a proper repair and prevent further damage.
What happens if you come out to your car and find a flat tire? If the leak is slow, the compressor can pump it up enough to allow you to limp to a service station.
If your car battery is dead after a roadside stop, your hazard lights may not work. The kit's warning triangle lets other motorists know you're stranded, and the jumper cables will allow you to get a jump start.
This kit is an excellent set of basic supplies. There are a couple of things that I would consider adding: a tire plug kit to permit short-term repair of a punctured tire before re-inflating and a compact mylar blanket that provides a lot of insulation in a pinch.
This winter I put a new set of Michelin X-Ice Xi3 tires on before our first serious snow of the year. The Xi3 provides a nice balance of excellent ice and snow traction with reasonable road manners. Winter here in Indiana spans many months, however we can often experience long stretches without snow and ice.
Having a fresh set of winter / snow tires on my car takes nearly all the stress out of winter travel. As long as the snow isn't too deep for the car to get through, I trust myself to get through most conditions without an issue. I've been using snow tires on my cars for years, but it has been a while since I had to purchase a new set. And of course, the technology is always improving. This new set is a big upgrade over my previous set of winter tires.
X-Ice Xi3 tires feature Michelin's FleX-Ice silica-based winter tread compound that provides firmness at higher temperatures for wet and dry road stability, while it remains flexible at lower temperatures to enhance packed snow and ice traction. The compound is molded into a directional tread design that helps evacuate water and slush for improved hydroplaning resistance. Snow platform indicators are molded into the X-Ice Xi3's tread grooves to make the driver aware of when ice and snow traction will be reduced as the tire's tread reaches the point where the remaining tread depth becomes less effective in deep snow.
If you've been grinding it out to the bitter end on your old winter tires, a fresh set will be a refreshing change. And if you have not used winter tires before, they will give you a completely new perspective on winter driving. Have fun and drive safely!
We always try to educate drivers about the need for matching tires on all four corners of their vehicle. Ideally, all four will always be the same, but the biggest chance for unstable or downright dangerous handling comes from mixing winter tires with non-winter tires in snowy and/or icy conditions.
You can see our test of a mixed set of snow tires below, demonstrating potential hazards under controlled conditions. Real world experience bears this out. I just heard from one of my colleagues about a customer who needed two additional winter tires to complete a set of four.
The customer came to our Indiana distribution center this past weekend wanting to purchase two more Firestone Winterforce tires for the rear of his vehicle. He had purchased a pair of 205/70R15 Winterforce tires elsewhere and had them installed on the front axle of his front-wheel drive Buick. After having the tail end pass him and exploring a ditch, he came to us looking for two more to complete the set. He is now a convert to the wisdom of 4 matching snow tires.
To see exactly what the customer experienced, watch "Why Gamble With Winter Tire Selection When Four of a Kind Always Beats Two Pair?"
The front-wheel drive car experiences oversteer as the front wheels turn, while the rear wheels want to keep going straight. On a rear-wheel drive car, with snow tires on the rear only, the results are different, but also not good: