hybrid

Imagine a supercar that hits 60 mph in 3.2 seconds and has a top speed of 200 mph. Now imagine this car getting 94 miles per gallon. This is the Porsche 918 Spyder prototype, revealed at the Geneva Motor Show.

The 918 Spyder is propelled by a 500-horsepower V8 engine along with front and rear electric axle motors. Liquid-cooled lithium ion batteries can be charged by a standard household electrical socket.

Up to 1,000 miles on one tank of gas? One eight gallon tank of gas? The engine that makes this possible, first introduced over 10 years ago by French inventor Guy Negre, runs on compressed air. Now Zero Pollution Motors (ZPM) plans to release the CityCAT, a six-passenger sedan using this technology,

to the Northeastern US by early 2010. The range and speed capabilities of the CityCAT are enhanced by using a small amount of fuel to heat the compressed air and increase air pressure. To recharge the air tanks the vehicle