I leased a 2007 BMW Z4 3.0si to use as a daily driver, as my wife drives our 2006 Land Cruiser. It did not take long to realize that this car is for weekends only! It is cramped and the ride over older roads will knock fillings out of your mouth! That said, it is a great sports car. The handling, transmission, and power are great. It is an absolutlely fun car in the cool of the morning or for a romantic drive in the evening, but it is not intended to replace a sedan. I am taking the penalty to get the 2008 535i!
Power, transmission, exterior looks.
Needs better air conditioner. The cup holders look and function as one might expect from a Yugo. Ride is intolerable over rough roads.