 I owned 3 Tribeca Subaru and 1 Audi Q5; they were too small.  The Touareg is just right; it doesn't bump my head on the lift gate. There is just my wife and me and for us it is a perfect fit.  I was surprised at the good acceleration and disappointed with the low end torque since my two other Touaregs were the 3.0 diesels.  I think the air resources agencies have an aim to get rid of diesels.