TBO -s ?????? Are you frigin nuts ? 24H in TBO , yeah right. Be reasonable, if you want 24H race it means GTR certainly. Im not planning to race 24H in a snail :P.
Last year's free-for-all 24hr race was run with every car except the UF1, BF1, FOX, F08, and LRF cars, if I remember correctly, and it went pretty well.