Related, but somewhat off topic...

I am so waiting for us to become empty nesters (1 down, 2 more to kick out of the house) so I can buy a 2-seater that I can tear apart, spread car parts all over the house to piss off my wife, and build a dual use street/track car.

Ranking of my choices thus far with a budget of around $20K:
'89-'93 Porsche 964
'01-'04 Porsche Boxster S
'99-'02 BMW M coupe
'02-'04 Honda S2000
'03 Nissan 350z