This car, while brilliant in performance characteristics, is utterly unreliable. With only 23,000 miles driven, the list of mechanical and electrical problems I have experienced are too numerous to mention. Suffice it to say that this car and the BMW service from the dealer where the car were purchased have provided me with the worst car ownership experience I have ever had. Although born in Germany, I will never purchase another German made car - Japanese cars are simply far superior - an imperceptible loss in performance is worth the peace of mind of knowing you own a reliable, well built machine.
Engineer this car to be reliable. Outsource all of the electronics in the car to the Japanese.