rxajb 
2005 BMW Z4 Convertible 2.5i 2dr Roadster (2.5L 6cyl 5M)
smooth
 Great car,very happy with the 2.5 engine.  I still look at the 350z and wonder if I should have gone with that one. Car is major fun to drive, very tight and feels very safe. I regret that i didn't get the fog lights.  I wouldn't waste my money on the navigation system. Just "keep your eyes on the road and head upon the wheels"