Starting December 1, 2015, Portal accessories will be available for your cars in Rocket League for free. They will be accessible by playing full matches and, win or lose, being rewarded with them. The full list of content is as follows:
- Cake (Topper)
- Conversion Gel (Rocket Trail)
- Propulsion Gel (Rocket Trail)
- Repulsion Gel (Rocket Trail)
- Aperture Laboratories (Antenna)
- Cake Sticker (Antenna)
- Companion Cube (Antenna)
- Personality Core (Antenna)
- PotatOS (Antenna)