Images: Take a wild ride to the Geneva auto show

Making its debut at Geneva, the Koenigsegg's CCXR could be the fastest car ever--and it runs on biofuel. The Swedish auto manufacturer says ethanol fuel has higher octane and better cooling power than regular gas which lets it boost the power up 25 percent over the CCX model to 1018 horsepower at 7200 rpm.

Pictured is the CCX model which is also being shown at Geneva. CCX will be re-engineered to run on biofuels.

Photo by Koenigsegg