For the last 8 or 9 months my 1994 740i has front end vibration on a cold start. The vibration can be so exagerated that the steering wheel vibrates. After the car warms up all signs of vibration disapppear. Could this be the drive train problem, high end camshaft vibration, cold tire pressure. I'm baffled?? The car is now at 91,500 and has the replaced 740 engine. Otherwise, the car peerforms flawlessly in city traffic and on the highway at high speeds.