Curt hitch and wiring harness installed easily, very light modification to the bottom and away bar relocated easily. Install LED turn signal with resistor to prevent hyper flashing. Just ordered 1" Wheel Spacers for stability. This car comes loaded, NAV, HIS, BAM, PARKING ASSIST. I traded my ML350 BLUETEC, because of frequent check engine light that put holes on my pocket and Happy I did the trade.