Koenigsegg has never raced, and inventor Christian von Koenigsegg has no plans to change that anytime soon. However, in the mid-2000s, the company had plans to compete in GT1 racing and developed exactly one proof-of-concept car fitting the then-current rules.
Because the rules changed before the car ever raced, Koenigsegg's Le Mans hopes were dashed with only one car. That one car has only had one private owner since, and it can now be yours. That is, if you had a couple million bucks.
The lone CCGT was developed for the defunct GT1 class, which saw C6 Corvettes race against Aston Martin DB9s, Ferrari 550s, and Saleen S7s in its heyday.
The CCGT was developed from 2003 to 2007, however a rule change to put GT1 racing more in line with production vehicles seen on the road meant that the window to enter such a unique car had closed by the time the finished car could have been homologated.
The finished car was never raced and was eventually sold to a private owner who has only used it for what the Bonham's auction listing describes as "occasional displays and demonstration runs."
Otherwise, it has been kept in "temperature-controlled, dry, and dark conditions, subject to only twice-yearly engine maintenance runs."
When it was constructed, the car was ineligible for GT1 racing, but the ad says that the Masters Historic Racing organization has already decided that it will be authorized to race in their similar historic series.
Of course, a lack of parts, development by customer racing teams, and historical running data would make winning in such a series tough.
The car will be auctioned off at the Goodwood Festival of Speed later this month. With a hammer price range of $3.25 million to $4.36 million, it would be one of the most expensive current GT vehicles in the world, but those cars are not one-of-ones.