Chrisloef 
2007 BMW Z4 M Convertible 2dr Convertible (3.2L 6cyl 6M)
The best roadster out there
 I sought out to purchase a roadster style car this June and must have tested everything under the sun.  I wanted to stay $60k and under which actually didn't leave me with many comparable options.  My favorite cars ended up being the Corvette, M Roadster, and 350Z Roadster.  Once you sit in an M roadster, you will notice the marked difference in quality.  The M has it all, style, quality, and great feel.