Just ordered my white/black-redcut leather 45. Had question to dealer on drive kit and whether I needed to get command function to make it work- he had no clue on drive kit. I then called MBUSA in Nj and asked them. At first the rep said he was not aware that you could get the drive kit on the cla. Whoa! i asked him to speak to a product specialist ,who then called back and said yes, that command was needed to integrate with the drive kit. So, ordered drive kit as well as P1, red brakes, carbon fiber and blind assist. Car is set to be made 0n 9/13.