The NYPD is looking for the luxury car driver who struck and killed an elderly woman in Brooklyn Saturday night — and kept on driving.

The 77-year-old victim was crossing Nostrand Avenue at Avenue H in Midwood just after 9 p.m. Saturday when she was hit by the car, law enforcement sources said.

The driver of the white BMW X6 hightailed it on Campus Road after the collision, the sources said.

The pedestrian, whose name was not immediately released, was pronounced dead at the hospital, sources told The Post.