More pics at link. The Koenigsegg Regera is the latest supercar from the small, Swedish brand, and its specifications will blow your mind as easily as the car can blow you away. The two-seat, mid-motor, carbon fiber machine, whose name means "to reign" in Swedish, features a unique plug-in hybrid powertrain with a total output of 1,500 horsepower, and can reach its top speed 249 mph in less than 20 seconds. And it does it with just one gear.