Swap the view
Seen From inside the car, the camera looks out the windows at nothing but blue.
General technique Later, visual effects software picks out that exact colour and replaces it with whatever the scene needs: dark fields, a small town, a station platform. Blue is a favourite for night scenes because it's darker than green, so it bounces less coloured light onto actors and shiny surfaces. That's handy next to a polished steel car.
Crew faces blurred for privacy.