Ten black and 10 brown socks, all mixed up in a dark room. How many socks do you need to guarantee a pair?

Volkswagen, which has great sway in the auto industry, is focusing on plug-in hybrids while it plays down the immediate future for all-electric cars.

Honda is broadening its hybrid strategy by improving its existing single-motor system, adding a new two-motor system and developing a three-motor system aimed at high performance and improved handling.

The automobile has not undergone a fundamental change in design or use since Henry Ford introduced the Model T, but the Tesla Model S has the potential to be a game changer.

Can you take an electric car on a road trip? To find out, a reporter drives the Model S on a 530-mile journey through California, stopping at Tesla’s Supercharger stations for fill-ups along the way.

The 10,000th rebate was claimed by the buyer of a 2012 Nissan Leaf.

The 10,000th rebate was claimed by the buyer of a 2012 Nissan Leaf.

Audi said the use of lightweight materials and reliance on an electric motor for motive power would help the concept achieve fuel economy of over 200 miles per gallon.

The station wagon concept is based on the Panamera sedan, which has polarized buyers and critics since it went on sale in 2009.