Hybrid cars should be seen and heard, Congress says
Auto safety regulators would be required to set minimum sound levels for hybrid and electric vehicles under a bill approved by the House.

SILENT DRIVE: Hybrids like the Toyota Prius are virtually silent, and blind pedestrians have pushed for changes, saying the quiet purr of hybrids can pose risks for them because they use sound cues to travel safely. (Photo: David Zalubowski/AP)

































