Interesting about the V8 in the Cayenne. I am in Australia, and actually sat down with the Porsche options list and optioned the V6 TDI Cayenne to the spec of my new Touareg 180TDI, which has every option except 4xMotion.
The Cayenne cost $206,000, the drive away price of my Touareg $94,600.00. Both the same spec. MMMM Did not take me long to decide on the Touareg.
About the interior, the Cayenne has a separate button for everything in the car, the Touareg has everything via the Touch Screen, a much better option when 90% of the buttons are never used.
I am more than happy with the Touareg, the Air Suspension makes a huge difference over the standard Springs, and the Adaptive Cruise control with auto braking is just amazing, especially in Peak Hour Traffic.
I parked the Touareg today next to a new Cayenne and ML Merc today at the yacht club, and it was funny to see both teh Cayenne and Merc Owners both spending some time look at the Touareg when they returned to their respective car.
All I can say the Touareg with all options is a great car, and is a bargain when compared to the Cayenne, ML Merc, or Range Rover