I have a '97 M3 and recently moved to Nashville where I have been keeping it outside (I know, I know). I usually keep it in a heated garage, so I have not had an opportunity to see any effects of cold weather on it. Recently I have started it after it has sat outside in temps about 50* F. The problem is that my car seems to have trouble starting, and then needs to idle really high (1500 RPM) for awhile. What the hell is going on?????????