well if we're goin this way, i was reading the little scrolling info stuff about the Aston Martin V8 Vantage last night, and it said that the V8 in it was tuned up by Callaway (which does some very nice work on Vettes) w/ twin superchargers and twin intercoolers, AND a 6 speed tranny from a ZR-1 Vette....so what if i dropped that engine into a Z06...instant Callaway vette! hehe. Ok i know im stretching now, I am going to make that hybrid tho, just for fun, not for this comp. Im also thinking about throwing it into the Audi S4 for kind of a mock RS6 hybrid. Thats about the closest youre gonna come to a twin turbo V8 in the game (it does use the turbo upgrade and is capable of HP in the High 900's, maybe even close to 1000 after a break in (if it has a break in)