I was driving when I lost compression and could not go anywhere, then it shut of

Many possible causes. Someone is going to have to diagnose it first. Tom

Right, this needs diagnostics. There really is no way of knowing, unless tested, if the engine lost compression, and if it did lose compression, this issue is likely large and costly engine repair. Have it diagnosed at one of these certified facilities, it is likely fuel or ignition related. http://repairpal.com/bmw-within-10-miles-of-grand-rapids-michigan-49507