PHOTO CAPTION: Frank Weber announces Goodyear and Bose contributions to GM's Volt efficiency efforts.

Volt Electric Car Gets Improved Tires, Lighter Sound System

Lower rolling resistance and more efficient sound system translates into squeezing more miles out of the car's battery pack.

Published: 11-Feb-2009

CHICAGO: General Motors Corp. executives say early versions of the Chevrolet Volt rechargeable electric car are getting the promised 40 miles (64 kilometers) on a single battery charge thanks in part to new low-rolling resistance tires and even a specially designed sound system.

The Detroit-based company on Tuesday announced that Goodyear Tire & Rubber Co. will make tires for the Volt with a new polymer compound that gives them 27 percent less rolling resistance than more conventional tires, while keeping the same level of traction and handling.

In addition, the Volt's Bose sound system will be lighter than a comparable sound system in a conventional car while using only half the energy, executives from GM and Bose said at an event on the eve of press days for the Chicago Auto Show.


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