World's first 'megacar' comes with a mega price tag

One the world's first Megacar manufactured in Sweden. Photo / Supplied

It would make the perfect Christmas present for that difficult-to-buy-for person who seems to have everything.

A supercar capable of reaching 439kmh is about to go on sale, and is poised to become the world's most expensive, hitting the forecourt for a whopping $10.5 million.

The Koenigsegg One: 1 is billed as the world's first "megacar" and at 1360-horsepower is 20 times more powerful than a Ford Fiesta.

This Swedish machine can accelerate from 0-99km/h in 2.6 seconds and engineers reckon it can reach 439kmh - though they've not been able to test it at that speed.

Only six models of the car have been made, and one of these sold to Supervettura, a supercar dealership in Berkshire in the UK.

The dealership has slapped a staggering 4.8 million ($10.5m) price tag on the car, making it the priciest new model to ever come onto the market. In comparison, the Bugatti Veyron cost a paltry $1.8m when it first went on sale.

Car dealer Supervettura said: "We are delighted to offer this very special Koenigsegg One: 1, the car that was used by the Koenigsegg factory to develop the extremely rare and extreme performance One: 1 model, the world's first Megacar.

"The car will be delivered with an extensive factory refresh."

He said the vehicle would be ready for delivery next month.