Congratulations on getting your hands on one of these awesome cars! Are you having trouble redeeming a code? We're here to help!
As mentioned in our blog post here the first 8 battle-cars you can see below do not come with any codes. These cars do have a code on the bottom but that is a serial number and not a code for in-game content.
For those rare cars that do come with a code, here's what the code insert will look like (not located on the car itself):
You might wonder, how do I redeem these new codes? After opening Rocket League, go to the “Extras” menu, click “Redeem Code,” pop your unique code in the window. Both items will unlock, and you’ll be achieving Cold Fusion in no time!