But you forgot to add the part that the more shiny bits you buy, the more Dinan points you get, and then you get to trade those points for a shiny Dinan badge so that everyone knows how many shiny bits you have.

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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