I liked the Q5 until I drove it...it seemed a little sluggish...especially after driving the X3 35i with dynamic handling and comparing second row seating room. However, the Nav in the Q5 may be better...but I really don't mind (the Nav in the X3 is still pretty good....much better than the Nav in our GMC Acadia which is really horrible). As far as pricing goes, I believe a fully loaded X3 may exceed the price of a fully loaded Q5. Whatever you choose, I'm sure you will be happy with either one (but if I were you, I'd pick the X3
.