Maybe there might be some enterprising panel beater out there. Mythbusters had a show where they tested the aerodynamics of a car with hundreds of dimples in it, like a golf ball (which supposedly improves the balls areodynamics). Even with the extra weight of an outer layer of clay (to enable dimpling process), it was found that the car ran 11% more fuel efficient with the dimples. Thus soemone just needs to punch a few hundred dimples in a hail damaged car (in the meantime covering up the hail damage), and they can sell a more efficient car.
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