audi is the redheaded stepchild to bmw,x6 is a very good crossover ,rear view is a little tight from back window,,turbo issues and pump.the higher end engine has 2 pumps have seen both go and then parts warranty on same work order so thats 3 pumps in 1 shop repair..otherwise no problems,brakes are noisy and have been issue for most new bmws with 20,000 or less mileage most brakes have rotor specs and 8 to 10mm left of pad and still noise ,,the brake sensors seem to touch rotor and wear ,if ur under the maint,general 50,000 ur off the hook.