Enforcer

Could this be Berserker before he went... berserk?

The Enforcer is a Decepticon Dread from the Dark of the Moon portion of the live-action film series continuity family.

The Enforcer is a Dread that happens to look a lot like Crankcase but his alt-mode is a Carbon Motors E7 Police car.

Fiction

Transformers Dark of the Moon - The Game

The Enforcer attempted to destroy Bumblebee and Mirage after the two Autobots ended up activating the Decepticons' space portal in Central America. He was eventually defeated. Dark of the Moon