If you own one of the following vehicles with 18" wheels using the 255/65R18 tire size, this posts for you:
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GMC Acadia
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Chevrolet Traverse
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Buick Enclave
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Saturn Outlook
All of the Lambda platform GM vehicles above come stock with, or have been optioned to have, the 255/65R18 tire size. Did you know that a 265/60R18 works just as well, and gives you some great alternate tires to consider? Take a look at a few of the options listed below:
The Lambda platform crossovers can be frustrating to purchase new tires for if you don't want to pursue the tires GM supplies as Original Equipment. All of the tires on the above list offer a quiet ride, all-season performance, good wet grip and excellent handling for your crossover.
As always, be sure to check the tire size your vehicle has before shopping. Some of these vehicles have 17" and 20" wheel options depending on the trim level.

Most enthusiasts know that the best way to improve traction is to use a summer only rubber compound; but often those tires can be very expensive and quick to wear out. Last summer, we had a chance to test a few Max Performance Summer tires to see which offered the best value. The tires tested were: the Dunlop SP Sport Maxx TT, Hankook Ventus V12 evo K110, Kumho Ecsta LE Sport and Sumitomo HTR Z III.
During the Real World Road Ride, the Dunlop SP Sport Maxx TT delivered the quickest and most direct-feeling steering of the group. The Sumitomo HTR Z III was a close second, with the Hankook Ventus V12 evo K110 and Kumho Ecsta LE Sport delivering similar overall handling and steering response but with a little more delay in the response. Overall noise levels for all four tires were similar, with all producing some amount of tread pattern hum. However, the Ecsta LE Sport and Ventus V12 evo K110 generated more distinctive tones as speeds increased.
On the track, the Sumitomo HTR Z III produced the quickest lap time, but the SP Sport Maxx TT felt more responsive at speed. The Kumho Ecsta LE Sport was able to lap our handling course nearly as quickly as the others, but didn't have the connected feel like the Sumitomo and Dunlop tires.
In this very popular category, all four of the contenders proved to be worthy threats to the higher priced options offered by Michelin, Pirelli and Bridgestone. In the overall test rankings, the tires finished in the following order:
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Dunlop SP Sport Maxx TT
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Sumitomo HTR Z III
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Kumho Ecsta LE Sport
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Hankook Ventus V12 evo K110
If a Max Performance Summer tire is in your future, check out our full test report by reading "Testing Value-Priced Max Performance Summer Tires."
I have taken my Michelin Pilot Super Sports into their second "summer" on my 2010 VW GTI. Here in South Bend, we were blessed with an early start to summer with warm temperatures beginning in March. I've clocked in just over 11,000 miles and the tire is still impressing me.
There hasn't been a sign of any degradation in the performance. Usually wet traction is the first to go and they're still bar-none the best tire I've used in wet. Last year, I had to pick up my sister-in-law from the airport during a torrential downpour, and gave her quite a scare when I wasn't driving "enough below the posted speed limit." While I was driving at an appropriate speed, the tire just provides so much confidence on wet roads.
For being as sticky and responsive as they are, these Michelin performance tires provide a great ride quality and quiet ride. I've only noticed a little tread noise on certain surfaces such as chip-and-seal, but a good tire won't hide bad road repairs.
My one observation is that it's important to check the wear of the tires where the Bi-compound rubber joins. You may see a difference in how the rubber looks between the two compounds. The outer shoulder has a slightly darker color to it, and the inner has a "grayish" hue to it. You can really see the difference in how the two compounds adhere by looking at the tire after driving through a damp parking lot. The inner compound will have more debris stuck to it.
To see if the Michelin Pilot Super Sport is the right fit for your application, shop by vehicle.