The Detroit Auto Show officially gets under way today, although GM (GM) has already introduced...

|By:, SA News Editor

The Detroit Auto Show officially gets under way today, although GM (GM) has already introduced its new Chevrolet Corvette Stingray sports vehicle, which can go from 0-60 MPH in under four seconds. With an under-body made of aluminum, and a hood and roof of carbon-fiber composite, the Stingray is an example of how car-makers are using lighter-weight materials instead of steel to improve fuel efficiency.