The X1 prototype: Faster Than Your Average Ferrari. Most of the time I like to profile cars we might actually get the chance to drive, but it never hurts take a look at the forefront of technology. Enter the X1 prototype, an open-canopy electric vehicle that meets somewhere between go-cart and Indy-500 race car.
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An Electric Car With Muscle: The 175 MPGe X1 Prototype by Wrightspeed Inc. : Gas 2.0
Video: The 2008 Indy 500 Goes Green
Two-time former winner of the Indianapolis 500 Emerson Fittipaldi will take the wheel of this year's pace car at the world famous race. For the first time in Indy history, the Corvette Z06, as well as competing race cars, will be using ethanol fuel made from plant material grown here in the U.S.Since ethanol has a higher octane than gasoline, Fittipaldi will have no trouble getting to the 120 miles per hour this Corvette will need to pace the race.

Formula 1 Racing to Go Hybrid from 2009-2013
It’s not quite the same type of hybrid drive-train you’d see in street vehicles, but in an exciting announcement, Max Mosely of F1 has announced that all cars will become hybrid by 2013, along with other changes to the vehicles.
Video: Volvo Cars to Develop New Green Racing Car for 2008 STCC Season
Volvo Car Corporation will develop a completely new racing car in 2008 and continue its work with bioethanol (E85) and Green Racing in the STCC (Swedish Touring Car Championship).
Formula 1 Will Lead The Green Way
Great blog post about the new rule changes in Formula 1 for the next season and how they will pave the way for "green" driving in racing and eventually in every day cars.

Vroom, Vroom: Formula 1 Orders Teams to Go Green

In the hypercompetitive world of Formula 1 motor racing, the only thing greater than the level of technology is the money spent developing it, and a lot of that money is about to be invested in green technology that will appear in cars the rest of us drive.

Hydrogen Go-Kart Breaks Land Speed Record
A hydrogen fuel cell go-kart has broken the world land-speed record while giving off zero emissions.