What is the rarest car in rocket league?

The rarest car in Rocket League is considered to be the Titanium White Octane. This car features a unique white and grey metallic finish that sets it apart from other Octane variants. The Titanium White Octane was only available as a limited edition drop during the Alpha phase of the game and cannot be obtained through normal gameplay or trading. As a result, it is highly sought after by collectors and commands a high price in the Rocket League trading community. It is one of the most coveted items in the game due to its rarity and unique design.