Just bought a 2013 ATS which at first we thought was a Premium model. This was a supposed "event car' put together by the dealer. It had 46 miles on it!
Car has 18" wheels and Michllen tires [not supposed to be on a Performance] and the Magnetic Ride Control switch appears to function. On my C6 Corvette if your car does not come with MRC there is no switch for it on the console. The ATS has the switch and the dash panel shows which mode has been selected! The build sheet does not show the MRC or the 18" wheels and tires!?? The car does not have the HUD which I really love in my Corvette! I wish I could add it for a reasonable cost. Am I correct in the above in what a Performance model is supposed to have. The car is my girlfriends, not mine.