Why do cars in American films/TV often “bump” when parked? /u/LeftHandedGuitarist No such thing as stupid questions

I’ve noticed this in so many things I’ve watched throughout my life now. When a character parks their car and turns off the engine, the car will often give a little roll or bump, like the handbreak isn’t properly engaged. I’ve never known this behaviour in a car where I’m from (UK).

Is it a quirk of automatic transmissions?

I’ve noticed this in so many things I’ve watched throughout my life now. When a character parks their car and turns off the engine, the car will often give a little roll or bump, like the handbreak isn’t properly engaged. I’ve never known this behaviour in a car where I’m from (UK).

Is it a quirk of automatic transmissions?