Koeingsegg, black with black interior. Or silver with Black interior.

Doh! ^ Was my answer. Those are badass cars. I have a video about it and it's just amazing.

the koenigsegg is interesting, but the engine is a ford mustang motor with a bunch of work. reminds me of the noble m12 gto3 with the ford mondeo engine, just has two turbochargers bolted up to it, also an interesting car but definitely not an 'ultimate' car.

^ umm speed, handling, looks.... I'd say it's pretty ultimate. But if you wanna get picky, Zonda C16 blk/blk, silver/blk.