Wow lot's of options on that list, my x5d was only $54k after all was said and done (Sticker was $62k)....if i was spending 70k i'd get the v8...at least you have the paper/bad ass performance to backup the higer price tag....if i were looking for a deal / rational transportation...i'd despec the d a bit and go for it...if i were rich i'd get both! :-)

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2011 X35d - Platinum Grey/Black/Bamboo
Premium, Convenience, Technology, Rear Climate, ipod/sat - 1st Time BMW Owner

2006 Dodge 2500 Diesel (7500lbs and 13.4 Sec Qtr Mile)
2010 KTM 530 & 300