Randall 
2006 BMW 6 Series Convertible 650i 2dr Convertible (4.8L 8cyl 6M)
German Gremlins EXIST.. I have them in my car.
 I bought my 2006 650I with 69,000 miles. Rides great, runs great, salesman gave me a CarFax that looked great, too...so I bought it. THAT SAID. The first day I had it the parking assist system quit - bad sensor. The entire bumper has to come off to replace it. Then, under hard acceleration, the car started losing all electrical power momentarily, throwing error codes and causing the engine to cut out. They reset on restart, but, well, that's an obvious problem. I was told by a BMW mechanic it is probably the potentiometer that controls/senses throttle position. After eighteen months of owning the car and 23,000 more miles, the driver's side door will not open from inside or out, and I am told it is not an uncommon problem with the door actuator. Great. now I am a race car driver climbing through the window. The power steering rack also leaks and will require removal to repair the seal(s). All these may seem like minor issues, but for a $72,000.00 plus car, this is not demonstrative of very good quality control or engineering. The ride and performance are on par, but I am disappointed with the overall quality of this car, and expected a better experience. It is my first Beemer, and probably my last. I have my eye on a good old piece of American muscle with no gadgets or gizmos - a 1970 Sting Ray Corvette.