Earlier this week, Koenigsegg announced that it had sold a 20-percent stake in the company to National Electric Vehicle Sweden (NEVS), the automaker trying to make all-electric cars based on old Saabs ...

No supercar company or other low-volume car manufacturer could gain lasting traction without offering unique powertrains, or at least sufficiently tweaked performance engines in matching wrappings.

The Koenigsegg Gemera is a four-seat hypercar that can do 0-62 mph in a claimed 1.9 seconds, but perhaps the most remarkable thing about this Swedish rocket ship is its 2.0-liter twin-turbocharged ...

A YouTuber by the name of Wesley Kagan has converted a junkyard Miata engine to run with Koenigsegg’s Freevalve technology. He has attempted this before on a single-cylinder Harbor Freight Predator ...