I read in Top Gear that the number one rated sports car by readers was the Honda S2000. That car is cheaper than a Porsche Boxster, more reliable and more fun. I drove both the Boxster and S2000 and would take the Honda S2000 hands down for the fun factor, reliability, cheaper insurance and 10k in savings over a Boxster.
And you know how the saying goes. My lugnut has more torque than a Honda :).
Regarding the previous thread about BMW v mazda. BMW 3's are one of the few cars that are near 50/50 weight distributed and RWD. That and the handling is top notch. The only problem i see is most who drive one don't appreciate that. Mazda miatas, rx-8, and mazdaspeed3 are respectable. The crappy thing about BIMMERS are the maintanence and electrical gremlins that happen after 4 years. But considering an Mazda RX-8's rotary engine likes to eat a can an oil every so often, I would consider maintanence a wash.