throb 
2004 BMW Z4 Convertible 2.5i 2dr Roadster (2.5L 6cyl 5M)
Z is good for me
 I got this car when I finally could afford one and wow it did not disappoint.  I got the SMG based transmission and that thing is a total blast.  I love the car so much that I am leasing a new 07 Z4 3.0si starting in 2 days!  My only gripe is that the Z series is always behind in cool technology that the 3 series has.  No siruis radio. Pathetic.  It's a very small gripe on a kickin' car!