Most of us believe this is a misprint, as the front track is slightly narrower according to the factory press kit. Therefore to assume that the car is wider by over 4inches per side would make the wheels/tires in from the outside edge of the wheelwell a considerable amount. It makes more sense for the car to be around 74 inches as it is currently 75.7 and if it was 74.7 , for example , this would position itself well with the decreased front track. This is all conjecture, but let's hope the logical scenario holds the truth.
