
(L) Famed film score composer, Hans Zimmer works with (R) Renzo Vitale on a soundtrack for a BMW electric vehicle. — BMW AG/dpa
A strange, soft whistle travels along the street. It sounds like a noise made by a flying saucer, or something out of Star Trek.
In fact, it's an electric car. They sound very different from conventional vehicles — and that's completely intentional.
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