I went round in my mates turbo'd Valver, probably the best experience in a car in my whole life (Except Becky in Asda carpark, but that's different)
My mate had been before and knew the circuit pretty well, add this to the fact his Valver was EPIC... Totally dialled, trick suspension, massive turbo, stripped and full cage, Toyo R-888's... etc, etc.
We were ruining EVERYTHING... RS4's, M3's even had a play with a GT2.
Just goes to show if you know the track and you have a 'sorted' car, you can embarrass much faster cars!