Yes, Rocket League has been part of several partnerships with real car brands and manufacturers, which has seen them add true-to-life models of real cars to the game. One of the most notable examples was the inclusion of the Nissan Skyline to the lineup or the Ford F150 truck more recently. Aside from that, the game has also seen other third parties add to the car roster, with entities like the Delorean from Back to the Future, the Batmobile from the popular DC comic, or the Battle Bus from Fortnite all featuring in this game at one time or another.