This is my 3rd set of Blizzaks. First set was the Revo1, by far the greatest tire ever made for ice and snow traction. 2nd set of WS70's. The WS70 is a great tire, but it doesn't compare to the old Revo1. Expect about 16-18k miles if your an agressive driver. Prepare to pass everything that is not running them, even 4wd's. I have ran in snow up to the mirrors on a Ford Focus ZX3. The tires on a foot of snow, are almost like having all season's on dry pavement. Once you try them, you will never run anything else. Who needs a 4wd when you can run the best tire you can buy on a car?