Hot Rod is an Autobot warrior in the Transformers cartoon series. Like his namesake, Hot Rod transforms into a futuristic race car.

In Transformers The Movie, Hot Rod is somewhat responsible for the death of Autobot leader Optimus Prime. While Decepticon leader Megatron and Optimus are locked in a fierce one-on-one battle, Hot Rod tries to attack Megatron. Megatron grabs the young Autobot, using him as a shield so that Optimus cannot shoot back. Soon after, Optimus Prime dies, passing the Autobot Matrix of Leadership to Ultra Magnus.

But Ultra Magnus is not the true successor to Optimus Prime, because the Matrix will not unlock for him. Galvatron aquires the Matrix, but in the final battle Hot Rod takes the Matrix from him. The Matrix unlocks, revealing Hot Rod as the true Autobot leader.

Placing the Matrix inside his chest, Hot Rod evolves into Rodimus Prime, an older and more mature version of himself. He continued to lead the Autobots until Optimus Prime was ressurected several years later.