I would expect that sales tax will be collected twice, since you are trying to sell something that you don't own.

Why not turn it in and tell your friends where it is if they want to go to the dealer and buy it?

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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