Pre-order DLC: Retailer bonus cars
FM.net: Pre-order Announcement
These cars are special DLC not available to purchase from the Xbox Store; each car is a separate DLC. Players must own the DLC for the individual model in order to bid on it in the Auction House. If you find this car in your garage but don’t own the DLC, you have the option to Remove it. Other attempted actions for pre-order cars without owning the DLC may result in “Marketplace Error.”
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.”
Pre-Order models do not have liveries applied. These cars have untuned versions of the same models in the regular game roster and are treated as separate models (“Pre-Order Edition”) due to the upgrades; players can still drive a Hellcat in the game even if they don’t buy from Gamestop.
2016 Audi R8 V10 plus
https://www.microsoft.com/store/apps/9NBLGGH4RLGG
Amazon (US)
Amazon (UK)
2015 Dodge Challenger SRT Hellcat
https://www.microsoft.com/store/apps/9NBLGGH4RPL7
Gamestop (US) with the Ferrari 488
2015 Ferrari 488 GTB
https://www.microsoft.com/store/apps/9NBLGGH4RLGH
Gamestop (US) with the Challenger Hellcat
GAME (UK)
2016 Ford Mustang GT350R
Microsoft Store (US)
2016 Jaguar F Type Project 7
https://www.microsoft.com/store/apps/9NBLGGH4RLFS
Best Buy (US)
ShopTo (UK)
2016 Mercedes-AMG C63 S Coupe
https://www.microsoft.com/store/apps/9NBLGGH4RLFR
Xbox dashboard