RonC 
2009 BMW Z4 Convertible sDrive30i 2dr Convertible (3.0L 6cyl 6M)
If you love to drive.
 This car is for you. So much fun. Decent gas mileage. Since the car is a 2009, I would hope they improved on the Navigation system. It leaves a lot to be desired.  I also went through three struts and they are very expensive. The hard top/convertible is amazing. 20 seconds and I have a convertible with a push of a button. Manual shift is great. You are really driving a car!!!