A crazed hothead blew a gasket and took his anger out on a cop car in Brooklyn, footage released Saturday shows.

The unidentified man walked up to an NYPD Traffic Enforcement Division vehicle on 7th Avenue near 92nd Street in Bay Ridge Friday morning, at first sizing up his “victim,” cops said.

After glancing over his shoulder, he loses his cool and hurls an unknown object at the windshield, the footage shows.

He then runs up and begins repeatedly punching the car window, the video shows.

He then whacks the passenger side mirror, breaking part of it off, officials said.

The suspect calmly walks off after his tailpipe tantrum.

He is described as a man in his 30s with a beard and was last seen wearing a bright green sweater, blue jeans, and brown shoes.