One Stop Shop marker:To unlock a special marker for the Junkman Engine part in the back room of the One Stop Shop in Career mode, at the “Press Start” screen, press Up(2), Down(2), Left, Right, Up, Down.Burger King Challenge:To unlock the Burger King Challenge, at the “Press Start” screen, press Up, Down, Up, Down, Left, Right, Left, Right. Then, from the Main Menu select “Challenge Series” and scroll all the way down to find it. After completing the Burger King Challenge you will be able to use all Junkman parts on cars that you have in “My Cars”.Castrol Syntec Ford GT:To unlock the Castrol Syntec Ford GT, at the “Press Start” screen, press Left, Right, Left, Right, Up, Down, Up, Down.Porsche Cayman:To unlock the Porsche Cayman, at the “Press Start” screen, press LT, RT(3), Right, Left, Right, Down.Easy money:To easily earn money, defeat an opponent on the blacklist and you will receive two marks that can be used on several different things. Do not use them on the Uniques early in the game. Instead, use them on the middle or the left “Random” choices. They should come out to either a large cash bonus or the opponent