Uol_Koras 
2006 BMW Z4 Convertible 3.0si 2dr Convertible (3.0L 6cyl 6M)
Great Roadster
 I tested all of the competition (SLK 350, Boxster S, S2000, etc.), and I found the Z4 to be the best in class, especially considering the price.  The Z4 has excellent power (and the sound of the I-6 is like tearing silk!), great fuel economy (averaging 26 mpg+ in mixed driving), tight, buttoned-down handling, plenty of room and great safety features.