Wind-powered cars go where the breezes carry them

While using the wind to propel your vehicle works great out on the ocean when you're in a sailboat, it's less useful for vehicles on the road. You can't simply stick a sail on top of your Escalade and hope to get where you want to go.

That doesn't mean there aren't people working on wind-powered vehicles, however. InVentus has just won the Racing Aeolus 2008 competition, which pits wind powered vehicles against each other. The InVentus vehicle weighs in at a mere 286 pounds before the driver gets in, which allows it to pick up a good deal of momentum from its propeller on the back when it catches a breeze. Is it going to replace gas-powered cars anytime soon? No, but it's nice to see some alternatives out there being worked on.

Greased Lightning: 100MPG biodiesel hybrid blasts from 0 to 60 in 5.9 seconds

Tiny car company Lightning Hybrids showed it means business at the Denver Auto Show this week, rolling out the first prototype of the LH4, a 100MPG speedster with a hydraulic-biodiesel hybrid drivetrain that can zip the tight four-seater from 0 to 60 in 5.9 seconds.

The ambitious Colorado company with a staff of 12 says the car will be ready for production in 2011, with a three-wheeled version rolling out even sooner, in 2010. The 100MPG cars are expected to sell for between $39,000 and $59,000, and are candidates for the Automotive X-Prize, with $10 million going to the winner of a stage race of 100MPG vehicles.

This is one wild-looking ride, with its split rear window and lift-up door hatch for easy entry. Its three-cylinder turbo biodiesel is augmented by a hydraulic pump/motor, whooshing an additional 150hp into the wheels of this pocket rocket. Amazing. Click Continue to take a look at the video.