To road test its new hybrid supercar, Porsche had its engineers drive two 918 Spyders from Denver to San Francisco, including a trip through the Nevada desert to see how the car reacted to the extreme heat.

Many drivers, while still preferring electricity over gasoline, want to see improvements in battery capacity and car design.

If online buzz and “Buy Now” buttons were translating into units sold, electric motorcycles would be a major growth industry. In reality, the number of buyers is barely detectable.

James G. Cobb, editor of the Automobiles section, drives a Fisker Karma in a game of car poker against a 1946 Buick Super, 1959 Chevy Impala and 1965 Thunderbird convertible.

The C-1, being built by Lit Motors, is a bike encased in a metal shell that is meant to provide the convenience of a motorcycle with the amenities of a car.

Dealers claim Tesla Motors, with its factory-owned retail stores, circumvents laws in their states intended to protect them.

But your refrigerator is. And why the best technology doesn’t always win out.

Mitt Romney recently referred to electric car-maker Tesla Motors as a loser. Yet as it ramps up sales of its sleek electric sedan, Tesla may end up a winner. Tracking its cash flows is one way to handicap its chances.

More powerful and appealing than its lease-only predecessor, the purely electric Fortwo ED is also something of a price chopper.

Andy Palmer, executive vice president of Nissan, attended a roundtable in Lower Manhattan to discuss how the automaker was responding to criticisms of its Leaf.