In the world exists only seven Koenigsegg One:1s. Just one of them habits in the U.S.—and Jay Leno drove it.

Leno doesn’t actually own this vehicle, even he’s still completely impressed by it, as it is clear by his reaction when he saw it, featured in this recent episode of Jay Leno’s Garage.

The vehicle was at a Michelin test track in Laurens, South Carolina. It was hand to explain all the details was Koenigsegg CEO and founder Christian von Koenigsegg. All One:1s have a twin-turbocharged 5.0-liter V-8, 7-speed dual-clutch transmissions, and nearly full carbon fiber structure.

One:1 debuted during the 2015 Monterey Car Week and is the last of the seven One:1s built

Specifically this car first showed up during the 2015 Monterey Car Week. It is the last of the seven One:1s built. Its owner was kind enough to let Leno to drive the car. We should remind you originally retailed for approximately $2 million. We saw examples retail for three times that figure.

If you’re not totally up to date on the One:1, you should be aware of the fact the car got its name because it delivers one horsepower, measured in metric hp, for every kilogram of weight including with the driver on board and the tank filled halfway. That’s 1,360 metric hp combined with 1,360 kg of weight. That’s 1,341 hp and 2,998 lbs.

With such a striking numbers, it’s not surprising that the car ihas been breaking records since its debut at the 2014 Geneva auto show. Newest was a new record of just 17.95 seconds for the 0-300-0 kmh (0-186-0 mph) acceleration and brake test. Koenigsegg in July tried to outstrip the Porsche 918 Spyder’s 6:57 Nürburgring record using another customer’s One:1, even a crash put an end to the attempt. That car is being rebuilt. It’ll maybe come back at the ‘Ring one day.