That said, my E30 was having troubles one day, so I had to take my E34. When I pulled out of the driveway there was a 5' oil slick. The diff emptied.
I pulled back in the driveway, got out, threw the keys at the drivers side window and yelled "**** YOU" at the E34. I leased a new car a few days later. I feel your pain.
However, in retrospect, I feel I made a hasty decision.