Dealers like to make a big deal out of demos like they are something special. They're really not. They're just another used car, probably worse than a 1 owner who likely treated it better than the GM or the loaner drivers who had it and didn't give a ****.
A lot of times, a dealer demo can't be eligible for CPO since it hasn't been titled.
Manheim Auction states that for a 2011 528 with about that many miles, the auction price (hammer price) is between $36k and $38k. Add auction fees, transportation, reconditioning and profit, and your'e looking at $41k to $43k. $47k is WAY too much money.
Sophisto Grau / Oyster - Black Nappa, Anthracite Wood Gone but not forgotten.
Heaven is where the police are British, the cooks are French, the cars are German, the lovers are Italian and it is all organised by the Swiss.
Hell is where the police are German, the cooks are English, the cars are French, the lovers are Swiss, and it is all organised by the Italians