Koenigsegg: There can be only One:1

The Koenigsegg One:1 earns its name with a power-to-weight ratio of 1 horsepower to 1 kilogram.

(Credit: Josh Miller/CNET)

GENEVA–They call it the first Megawatt car because its turbocharged 5-liter V-8 produces 1,000 kilowatts. That’s 1,341 in horsepower. They named it the One:1, because it has a power-to-weight ratio of one horsepower per kilogram.

Danish automaker Koenigsegg brought its new One:1 supercar to the Geneva auto show, demonstrating an unparalleled level of engineering. In silver and black, this road legal Agera R sibling can make it up to 273 mph.

More extraordinary, Koenigsegg notes that the One:1 can make it to 248 mph, 400 kmh, in just 20 seconds.