nyfo 
2011 BMW Z4 Convertible sDrive35i 2dr Convertible (3.0L 6cyl Turbo 6M)
Drive them all and you'll choose this one!
 Purchased this vehicle coming from M6 through E63 AMG. Although M6 is very fast, SMG tranny is HORRIBLE in real life. AMG is an absolute MB service dream (8 weeks in service out of 6 months of ownership). So after browsing 911, SLK and boxter - I decided to go with the Z4. Hardtop convertible is awesome. Features, although very pricey (base $52k, mine $66K) are all there. Handling, although criticized, is very adequate. This car is not built to be driven on track only, it is a very comfortable sports car adaptation to real life conditions. Highway cruising feels like a 7. Thumbs up, BMW, can't wipe the smile off my face every time I drive it! Bi turbo is a mast, base model lacks power, etc.