zgaspen,
I've driven the X5M, had a 2009 BMW 535i, currently have a 2003 Montero Limited, 2011 Cadillac CTS-V, 2011 Camaro SS, 2010 E-series Mercedes and a 2012 LR4 Lux with the 20" gloss black wheels.
In my opinion, if you only want a good handling, easy riding vehicle for the road, go...