«somebody makes a car that can run the AC without running/draining the battery while it's parked» Temperatures could be reduced significantly with a car modifi

«somebody makes a car that can run the AC without running/draining the battery while it's parked» Temperatures could be reduced significantly with a car modification that uses very little energy: a small fan to circulate and replace all inside air with outside air, and a one-piece reflective foil cover on top of the car, covering the entire windshield + roof + sides + rear windshield.