Draw a long rectangular body shape
Add a smaller rectangle on top for the cabin
Sketch the front hood sloping slightly downward
Draw the windshield and rear window
Add two circles for the front wheels
Add two circles for the rear wheels
Draw wheel arches over each wheel
Add the front bumper and rear bumper
Sketch the side doors and door handles
Draw the roof light bar
Add headlights at the front
Add taillights at the back
Draw a grille on the front
Add mirrors on both sides
Write “POLICE” on the side doors
Add a badge or emblem on the doors
Draw a stripe along the side of the car
Add details to the wheels and hubcaps
Outline the car with a dark pen or pencil
Erase extra sketch lines
Color the car black, white, and blue
Color the light bar red and blue