Why hasn’t anyone thought about this idea? Fix a fan to the roof of the car and belt it to a generator. As the car accelerates, the fan spins, generating electricity. Sounds like a 5th grade science project.
But what one doesn’t understand is making an ultra-efficient fan that spins to the slightest push costs money. Next the fan has to generate enough force to drive the belt and the generator’s armature. The last factor is aerodynamic drag
