Originally destined for full-scale racing production, Koenigsegg had to scrap its plans for the car after building just one. That car, a CCGT GT1 Competition Coupe, is now up for sale. It has an interesting history and some wild capability that its next owner can take great pride in.

Koenigsegg initially began work on its CCGT program in 2003 before debuting it in 2007 with this car. It had hoped to go racing in the GT1 Class. At the helm of the racing program was Dag Bölenius, an engineer and programmer. Supercar engineer Loris Bicocchi took up the role of test driver.

This was a team that looked great on paper but the car would never go into production. Just two months after beginning shakedown drives the FIA and ACO changed regulations for the GT1 Class. Instead of needing to build just 20 production cars over a number of years, manufacturers had to build 350 production cars per year. The Koenigsegg CCGT GT1 program couldn’t survive that shift.

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 This Is The Only Racecar Koenigsegg Ever Made And It’s Going Up For Sale

As a result, this singular car remains as evidence of the work that Bölenius, Bicocchi, and the rest of the team did. That’s partially why this car has an auction guidance of £3,000,000 – £4,000,000 ($3,806,382 – $5,080360 USD).

Keep in mind that the buyer’s premium is 15 percent of the first $500,000 and then 12 percent of everything above that. For example, if this car sells for £4,500,000, the buyer’s premium will be in the neighborhood of £555,000 or $704,180. For that cash, the new owner is going to get one heck of a machine.

Under the rear decklid is a 5.0-liter 32-valve naturally aspirated V8 with 600 bhp (591 hp / 441 kW) mated to a sequential gearbox. It even has its original slick Michelin racing tires intact. The Masters Historic Racing organization has cleared it to race in the Masters Endurance Legends Series should the next owner want to do that.

Those worried about whether or not this thing can actually run and drive shouldn’t be. Bonhams says that it’s been kept in a temperature-controlled room in “dry and dark conditions.” In fact, it’s had twice-yearly engine maintenance runs. That should ensure that the seals and gaskets are in working order.

Image Credit: Bonhams