Thank you for the detailed analysis. This particular car is a CPO and is from a dealer as will be any car I look at. It is also important to note that BMW is offering your first 3 payments up to $1500 or .9% APR for 48 months on 2009 and 2010 5 series. This obviously sweetens the deal.
I have spoken to a dealer in Westchester County NY who has a black one with natural brown, 18500 miles, value package and navigation. They will go to $33,750. The fact that the car has only 18,500 miles is very attractive to me. I lose all the lighthing upgrades from the premium package but again....the mileage.

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Current Vehicles:
2003 E39 525i
2008 E70 X5
Past BMWs:
2001 E46 325i
2001 E46 330ci