Audi Reveals ‘E-Sound,’ an Engine Noise for its Quiet Electric Concepts

Mashable
Mashable
  • 10 years ago
Audi's e-tron concepts are as green as any hybrid, but even with a 313 HP engine, you’d never hear it coming. Audi’s German engineers have developed a sound to combat the quiet concept and alert pedestrians when the car is approaching.

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