Arias Pistons 12.5:1 Compression 82mm Bore Honda B-series on 2040-parts.com

Chevrolet Volt faces toughest test--consumers

Scientists, journalists and a slew of other alleged experts have all weighed in on the 2011 Chevrolet Volt, and now the only verdict that truly matters--the public's--will be rendered. General Motors said 6,348 consumers have taken the extended-range car for a spin during a 12-city “Volt Unplugged Tour,” and not surprisingly, GM's reviewers like it. Still, initial feedback does appear to be truly positive.

McLaren P1 caught testing in Spain

We're still awaiting details about the McLaren P1—successor to the legendary McLaren F1—but we have a better idea what the supercar will look like courtesy of some new spy photos. McLaren officially unveiled the P1 at this year's Paris motor show. Its dramatic curves didn't disappoint.

Nissan Mixim concept

The Nissan Mixim concept car is a compact vehicle for young drivers who are mostly engaged by their computer and the world via the internet -  and it's a new step toward the Japanese company becoming greener. The design incorporates styling features not often seen in electric vehicles, including gullwing doors in a svelte coupe shape. Its wraparound windscreen, inspired by the visor of a crash helmet, dominates the profile while the swept back windscreen, flowing roofline and sharply truncated rear hints at sporting performance.