“You are not thrown about during a ride on a city street”
If the driver wants you to be thrwn around during a ride on a city street, you’ll be thrown around during a ride on a city street. Especially if you’re in wrist & ankle restraints, with no seatbelt, on a metal surface.
Some police call it "Failing the Screen Test". They cuff you and put you in the rear seat of the cruiser, without securing you with a seatbelt. Driving to the station, they wait until you're not looking, then hit the brakes, slamming your face into the wire screen that separates the compartments.