Today's Chevy Volt is eligible for a $4,000 tax credit and has a replacement battery. Does the make for an electrifying deal?

Tuning Chevrolet's Volt, GM engineer says: "We've got the feel of a sports car" 2011 Chevrolet Volt – Click above for high-res gallery ...

The Taycan, however, uses an 800-volt system that Porsche developed in-house, using technology it first honed in its Le-Mans winning 919 Hybrid race car. It was not easy to be the first to market ...