Another possible answer or should i say thought is; Could GT5's tire wear fallen more in line with reality. More often than not, most people, especially online and using controllers, over drive the cars, diving hard and deep into turns, pushing hard around turns with the tires screaming, and full throttle blasts right past the apex. I have found when I'm driving this way to gain some ground on a lead car, my soft compound tires degrade rather quickly. However, if I drive within the limits of the tires and car, slow in fast out, smooth early braking on entry, maintaining a smooth corning line with a bit of scrub from the tires, and gradual throttle on exit, i can get the same tires to show little to no wear on a 6-7 lap race. This may be a little bit of "Days of Thunder" logic, but it seems to hold true. Over drive the soft tires, and theyre shredded after 7 laps; drive smooth and within the limits and you could probably get double the amount of laps. Also consider how you would drive a real car. This past summer i tried out and entered 3 autocross events with my Camaro on harder compound street radials. While my tires had some miles on them already and me being rather new and learing, they wore down significantly faster than i expected over the 3 events. I was over driving the car (braking late, pushing hard understeering into the corners and jumping hard on the gas on exit creating wheelspin) .......15 laps at below 60 mph and what was left of my tires were spent. I couldnt imagine road course time and the added wear it would have had much less in an actual race. Just my thoughts on the subject.