 At the end of October 2012 we traded in my wife's 2008 Mercedes 4matic (station wagon) for a new Mercedes 2013 GL550.We love the exterior design of the car and the flexibility on the interior design with the third row seats.The acceleration of the car is incredible-no problem merging onto the freeway or passing.Gas mileage is not the cars strong suit but I did not expect it to be.Now the bad, at 4000 miles the car needs new front rotors which are not yet a stocking item at my dealership-10 day wait! A In addition both side view mirrors are defective-drivers side is frosted and the passenger's side has two stripped bolts off its backing plate. 