It was something I was always wondering whether rF2 did actually calculate, after seeing some onboard F1 stuff from 2005, where I saw the tyres grow just a small fraction when going down straights. That and the aero pushing the car down. Well I was trundling around Dunsfold with a various bunch of cars, and I took the Eve out. Got stuck on this curb which had no friction to it, with my rear wheels free to spin up. I saw the tyres grow a bit so then I grabbed this video, as I was quite surprised to see it happen. Dunno about all you other guys, but I didn't think they had growth modelled. For the vid, I set the gearing way up, like up to 500kph or something.