I am curious about tire performance testing...
 

I have been shopping around fopr new tires and have read everything I can find on several models trying to make a decision. I realize that more than just "stickyness" plays into the overall performance of a tire and that the same tire may perform differently on different cars but...I noticed something interesting as I was looking at the performance comparisons done by the Tirerack. I am not saying the tests are flawed or scewed or anything else...just that the numbers are interesting.

If all you knew about these 3 tires were that they were tested by the same people on the same model car, what would you say about them?

225/45 17 225/40 18 225/45 17
laptime (wet) 34.01 34.78 32.94
laptome (dry) 31.64 31.84 31.3

cornering (wet) 0.8 0.87
cornering (dry) 0.93 0.93 0.94

slolom (wet) 5.11 4.97
slolom (dry) 4.66 4.94 4.73

braking 50-0mph (wet) 99.4 99.6 92.5
braking 50-0mph (dry) 83.1 86.9 81.2

You're missing a few numbers. What's the deal with the 225/40/18, it's a larger wheel compared to the other two so comparing it with the others in a different size is not fair.

[QUOTE]Originally posted by johnyboy32
[B]If all you knew about these 3 tires were that they were tested by the same people on the same model car, what would you say about them?

The missing numbers were not available in the tire erack review I took them from. I saw the larger tire size. Again, I was limited to the tests done by Tirerack.