I loved, I have to and I will love BMWs but never will think of owning one.
Just yesteday I was sitting with one Scandanavian freind and according to his claim "It was a blunder to go for BMW 7". In his first year alone he went to the dealer 17 times for troubleshooting, not to mention servicing. Guess what, he own Lexus LS430, again, according to his claim "I mostly forget where is the dealer when I'm going for service".
Another friend owns a 5, his office is less than a kilometer away from his home. The troubles in last 3 months forced him to cross the street by walking. The parts cost 3 to 4 times that of Merc, whereas the cost for parts of Merc is slightly cheaper than a Corolla.
All who are here at PW for long knows that I always wanted to go for a 7 and was disappointed with it. A 2 hour test drive decision was changed by a 20 minutes driver of Merc E-Klasse.