Triumph T140 Push Rods, Bonneville, Tr7rv, T140e, 29 on 2040-parts.com

Chevrolet Mi-ray concept gets a new ‘mid-electric' hybrid powertrain

General Motors Co. has unveiled a sporty South Korean-developed concept car that showcases a "mid-electric" hybrid powertrain that can run on electric-only front-wheel drive or tap a gasoline engine to turn the rear wheels for extra power. Dubbed the Chevrolet Mi-ray, Korean for "future," the compact, open roadster gets a carbon fiber body mounted on an aluminum chassis for lightweight performance.

New Porsche World Premier at LA Motor Show. But what is it?

Porsche World Premiere Los Angeles - a new version of the 918? With the Los Angeles Motor Show looming later this month, car makers are starting to tease. And Porsche are teasing with their offerings for LA with the promise of a world premier of a new Porsche.

Essay: Variable Degrees of Translucency

Car door panels and fenders are generally made of steel, sometimes of aluminum or plastic composites, and you can't see through them. Car windows, on the other hand, are made of a transparent sandwich of glass and plastic - and you can see through them. But in the future there will be variable degrees of transparency: translucent elements where once there were none, traditional window areas that will have opaque elements and graduated progressions from opaque to see-through.