When detective Dwyer finishes up using his acetylene torch to loosen the metal running board of the getaway car, he immediately grabs the running board with his hands--a very foolish move as the still hot surface would certainly inflict severe burns.
It seems completely implausible that the vehicle in which the bank robbers fell down a 30-50 ft (?) deep slope/ravine should be restorable at all. In every probability a total loss. Apart from that, it is more than unlikely that such exhibits will be given away by the police.