That was a rumour previously posted, along with the claim that there would be a V10. I would put my bet on the most recent info, meaning gasoline 3.0 and 4.8, with the performance version being a V8 turbo (twin turbo 4.4?), in addition to I6 and V8 diesel models.

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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