While you can try and force BMWNA's hand, getting your warranty honoured at a BMW dealer in Canada is at their discretion, so I don't think it is worth calling their bluff on a nearly new vehicle that is likely to require attention during the warranty period. You will already be giving up the prepaid maintenance, but the warranty is worth something IMO.

Just buy a used one.

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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