Hot Spot (G1)

Hot Spot was the leader of the Autobot subgroup Protectobots and formed the head and body of the gestault named Defensor. Hot Spot transformed from robot to blue fire engine.

In the Marvel comic book continuity, Hot Spot commited suicide in order to make sure that Cybertronian technology did not fall into the hands of Cobra during the G.I. Joe / Generation 2 comic crossover.

From Teletraan I: The Transformers Wiki, a Wikia wiki.