Originally Posted by AndyRST
I used my F1 GSD'3 round bedford and after 3-4 laps the surface of the rubber was like small crumbs where it had got hot and scrubbed off.
Maybe i was pushing the car too hard and sliding the tyres too much ?
That just means you're trying mate
The heat you put through tyres on track as opposed to road is huge!
I had a set of tyres "go off" so to speak (F1s) after some really vigorous driving, and it was some experience - like driving on ice!