RE: what you hear is the speaker in the back that generates the sound of the exhaust. .
Either he is not well informed or - more likely - that came out the wrong way. We know what the speakers do: create the Tron-sound that warns pedestrians and cyclists.
Either he is not well informed or - more likely - that came out the wrong way. We know what the speakers do: create the Tron-sound that warns pedestrians and cyclists.