The 2006 Koenigsegg CCXR Prototype supercar being auctioned by Bonhams on December 12. The cockpit features a full carbon-fiber dashboard and a towering shift lever for the six-speed manual gearbox.

There's no such thing as a common (or inexpensive) Koenigsegg, but this example is rarer than most. A CCXR prototype from 2006, it was one of the earliest hypercars the company built to use biofuel.

The Koenigsegg CCXR Trevita is hypercar royalty. It belongs in the echelon of the world's most expensive cars. Retired boxing legend Floyd Mayweather Jr. paid $4.8 million in 2015 to own one of ...

Between 2006 and 2010, Koenigsegg built 19 examples of the CCXR. One of these was a stealthy, satin-black prototype used to help fine-tune the biofuel technology. Now, after years of being tucked ...

The 2006 Koenigsegg CCXR Prototype supercar being auctioned by Bonhams on December 12. Bonhams The car is owned by Norwegian industrial designer and innovator Bård Eker. A close friend of the ...

A 2006 Koenigsegg CCXR prototype, one of the earliest vehicles designed to run on biofuel, is set to go on auction at Bonhams in London on December 12. This pioneering hypercar represents a ...

Jay Leno invites Christian von Koenigsegg into his garage to talk about the Swedish supercar company and to take a drive in the 1,018-horsepower CCXR Trevita. The Trevita name tells you everything ...

the extremely rare Koenigsegg CCXR. The Top Gear crew has been behind some pretty spectactular crashes in recent history. Need we remind you of Richard Hammond's jet car crash that nearly took his ...