Oil leaks are a nightmare and an Unfortunate common problem with these BMW's. My 745i was plagued with them and its never a Cheap quick fix. Everything from valve covers, crank case vent valves, timing case covers, alternator gasket etc etc. You can get a good deal on an older car, but in my opinion, it isn't worth the hassle. I swore I would never buy an older BMW again outside of CPO. When the leak start... Run for the hills!!!!
2012 BMW M6 CONVERTIBLE