A motorcyclist was killed when he rammed into a Nissan in Brooklyn on Saturday, cops said.

Julius Holloway, 47, was heading north on Mother Gaston Boulevard at Belmont Avenue in Brownsville around 4:15 p.m. when he struck the car, which was making a U-Turn.

The cyclist — whose name was withheld pending family notification — was pronounced dead at Brookdale Hospital.

The 29-year-old Nissan driver and her four passengers — including a boy who is just under a year old — were taken to Kings County Hospital for minor injuries.