Urban myth. BMW began including prepaid maintenance in the US because potential purchasers were afraid of the dealer prices for maintenance. It was a US program designed to level the playing field. If a high percentage of dealers hadn't been ripping off BMW owners they wouldn't have needed to do it.

It is more telling to note that BMW holds the residuals on all of their leased vehicles, and is happy to do so for extended lease periods, despite the apparent risk of their oil change intervals.

Also interesting that you don't even need to follow the BMW oil change recommendations for BMW to take your used vehicle into the CPO program and put an extended warranty on it, at their risk. BMW don't worry if you go over 20,000 miles on oil changes before giving you a CPO warranty, without even looking at the engine.

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2007 X3 3.0si, 6 MT, Premium, White

Retired:
2008 535i, 6 MT, M Sport, Premium, Space Grey
2003 X5 3.0 Steptronic, Premium, Titanium Silver
2002 325xi 5 MT, Steel Grey
2004 Z4 3.0 Premium, Sport, SMG, Maldives Blue