This Glitch Is Easy To Do. Just Go To The FORD COMPETITION part and choose a challenge. Then BEFORE you pick your car, press X and it will change the Color! This Glitch works no matter if you beat the game or just started a game.
(Note: it will not show color till you begin the race)
Ok. To Beat The Game You HAVE to win first place on EVERY tournament AND you HAVE to beat Normal AND Hard Settings on Ford Challenge