Think back to the last time you saw The Dark Knight — remember the scene of Batman riding on his tricked out BatPod? Remember what that sounded like? Turns out the Sound Editor for that flick, Richard King, (who also won an Oscar for his effort), borrowed the sound of a Tesla Roadster as an underlying tone for the Pod. Autobloggreen gives us some additional details:
Even though the Batpod itself is powered by a conventional internal combustion engine, the moviemakers wanted the machine add tension to the chase scenes in two ways. First, Batman is very exposed on the bike, unlike the heavily armored Tumbler, so we’re more worried about the hero. Second, by using a Shepard Tone, the director could continually increase the pitch. The team wanted to start with something real before playing around on a computer to create the tone, and the Roadster’s electric motor provided part of the underlying tone.
It’s all very geeky — but so is Batman. I love it. To check out some sound clips of the Tesla’s electric crooning, jump over to ABG here.