If you're shy don't get this -- it's definitely an attention getter. It's an awesome car. The ride is stiff and depending on your road conditions, you will feel it. No problems at all on the highway though -- nice and smooth. I also find the middle and back compartments a bit hard to get at. It is low to the ground so can be hard to get out of for some. Not thrilled with COMAND controls -- my other car (BMW 528) is much more intuitive and I agree with Arisdad that the panel is better on the BMW. Understeer is more pronounced than I expected. These are of course all very minor complaints. The car is exactly what you expect but a lot more fun.
Engine -- performance and sound.
Clear glass wind blocker as standard, considering what the car costs...