With rare exception, though his team buys junkyard cars that don't run, then modifies them for stunts - and destruction.

"The integrity of these cars is too much," he said, adding that none of the working, cared-for vehicles was harmed during the making of the film.

"We never ever shot a hole in a single fender," he said. "Those cars are down here in my office, and they're not even scratched or hurt. All bullet holes were CG."