Wife came home and said he pulled up in a black one without plates. She said it looks sportier than my car--pang of jealousy of course. However, given the way I drive, I think my sedate white M5 has saved my butt numerous times. I think the evil serious look of a black E39 would get me thrown in jail.
He also has a Porsche, 993 I think. I will have to see if he has kept his Porsche and, if so, how often he drives that vs. the M5.