or better yet, the 1988 sledgehammer corvette! 880 hp from a twin-turbo'ed small block, gunned and documented (i'm looking for the article as i type) at 254mph!! now that's supercar!
as far as the superbird, i believe that they were pushing close to the 190mph ( or very close) and that's why they got banned! they are the real deal!
and about the daytona coupe, 30 might be high, i'm not for sure. but dam, for the time that was a sweet ride!
pocketbook no object, jag xj-220, mcclaren f-1, ferrari f-60 and the new carroll shelby thing(can't remember #). not in that order, but i'd take any one!