You've got plenty of choices for user friendly, everyday useable supercars that aren't totally impractical.
Mercedes SLR McLaren
Mercedes SLS AMG
the obvious one, Porsche 911
McLaren MP4-12c, if you wanna spend a ton
Corvette Z06/ZR1, not as classy or comfortable or luxurious as the rest of the options, but a whole sight cheaper. Big trunk as well.