Pre-order DLC: Retailer bonus cars
FM.net: Pre-order Announcement
These cars are special DLC not available to purchase from the Xbox Store.
Per the Pre-Order announcement, “Pre-ordering Forza Horizon 3 will give you access to pre-order bonus car which are tied to participating retailers. These cars will be tuned to the top of their class and players will be able to automatically add them to their garage after redeeming the code provided by the retailer. Here’s how the breakdown will work for participating U.S. retailers. Those outside of the U.S. should check with their local participating retailers to see which cars will be available per outlet.”
The image of the Hellcat from the announcement shows no special livery on the car. These cars have untuned versions of the same models in the regular game roster and are treated as separate models due to the upgrades; players can still drive a Hellcat in the game even if they don’t buy from Gamestop.