We have a V10 Touareg at home and I'm adding a X53.0sd to the fleet, losing the LandCruiser... The Touareg is an awesome Car, better value and less pretentious than the X5. Brilliantly finished and we have had next to no problems with it.

The X5 is the next best luxury AWD on the market to my mind, the potential with the zippier Twin Turbo , but MUCH better fuel economy than the V10 won me over.

Definately worth testing both Cars in my mind.