Our fellow readers are correct sfogle. The 500 has got to be easier and cheaper to repair than the 600. Take your time, and find one that was taken care of. It took me two years to find the one I finally purchased. Look for corrosion at the front lower control arm attachment points on the body. If there is severe rust there, pass on the car. Also, on a 600, listen for a clanking or loose-sounding timing chain. Pass on the car if you hear that. I have a 95 S600, and the thought of what could go wrong with this car breaks me out in a cold sweat every once in a while. But having said that, there's nothing like seeing that gleaming V12 emblem on the side of the car.