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The Chevrolet Volt has probably been "coming soon" for longer than any vehicle in automotive history, but trust us, it's real. We know this because we were recently handed the keys to a preproduction version of GM's electric Prius-hunter for a test-drive in downtown San Francisco.

GM tells us that this preproduction model was hand-built late last year, and that substantial tweaks have been made to both the software driving the Volt and the fit and finish of the interior of newer versions being tested elsewhere--and that the production models that roll off assembly lines in November will be tweaked further still. However, the actual hardware of the vehicle's drivetrain is about as showroom-ready as it gets.

Extended range electric vehicle The hardware in question begins with a T-shaped lithium ion battery pack running the length of the vehicle's center tunnel and rear seats that provides power to a 120kW electric motor. The motor is connected to the front wheels through a single-speed transmission and handles all of the vehicle's motivational duties. Running in electric vehicle (EV) mode, the Volt has an estimated optimal range of 40 miles, more than enough--by GM's estimates--to handle commuter duties for the vast majority of drivers.

Also tucked under the Volt's hood is a 1.4-liter gasoline engine. This engine integrates a generator, producing juice to keep the Volt's batteries trickle-charged in extended range (ER) mode when trips exceed the vehicle's 40-mile EV range. This gasoline engine is not mechanically connected to the drive wheels or transmission, only the electric motor is. So don't go calling the Volt a hybrid around GM's people. The preferred term is extended range electric vehicle, or EREV.… Read more

TOKYO--The Chevrolet Volt extended-range plug-in hybrid could hit Japan's shores as early as next year and go head-to-head with the country's hybrid and electric vehicles.

Sumito Ishii, managing director of GM Asia Pacific Japan, told reporters that General Motors is studying a Japan launch for the Volt in 2011 or 2012.

The car, which is powered by an electric motor and has a small gasoline engine to recharge the battery, goes on sale in the United States late this year. Ishii said last month that Japan was not part of the Volt's initial global rollout plan, but … Read more

The Proton Concept will be a city car styled by Italdesign and unveiled at the Geneva auto show. Big deal, right? Euro-styled city cars will be a dime-a-dozen in Geneva. But what makes the Proton interesting is that it will be a plug-in series hybrid powered (a la the Chevy Volt) with a drivetrain developed completely by Lotus Engineering.

The system starts with an electrical drive system with single-speed transmission that provides twist to the wheels at all times. As long as the battery level is at an acceptable charge, the Proton will function as an EV. Once you approach … Read more

Updated: CNET video added.

The Chevrolet Volt hasn't even hit the sales floor yet and there's already an app for that. On Tuesday evening, Chevrolet and its OnStar telematics system announced working smartphone apps for the Motorola Droid, Apple iPhone, and BlackBerry Storm that will allow Volt owners to connect to their vehicles wirelessly to access remote features via smartphone.

The Chevrolet Volt OnStar smartphone app will let users know if the Volt is plugged in or not and whether it's charging on 120V or 240V. Users can also schedule charging times to get the lowest off-peak … Read more