Protectobots: Unlike the Combaticon the term "Protectobot" is synonyms with trainee or rookie, Autobots that are assigned to security or escort duty instead of the front lines. Hot Spot's team is no exception as he is the drill sergeant among the recruits, determined to grind them down and build them to become the best the Autobot army has seen.

Honestly it would develop the group more than just "emergency vehicles". Plus we need another drill sergeant figure.