Being a master diesel mechanic for at a Freightliner truck dealership for close to thirty years I believe I am a fair judge of quality. I have really enjoyed this car for over two years. When you get off work there is nothing better than jumping into your Z4, dropping the top and hitting the road. I have owned many new cars but this is the only one that is as much fun to drive now as it was when I bought it! If there was anything I would change I would redesign the drink holders as they spill hot coffee on your leg on turns, the seats should have higher side bolsters so you don`t slide around so much on turns. And get the Xenon lights which was the only option I didn't get. BMW - great car!