If you’ve ever played a racing game, you’d know that Koenigsegg doesn’t make slow cars. The Regera, for example, can reach an impressive top speed of 250 mph. What’s even more astonishing is that it accomplishes this with just a single gear. Yes, you heard it right. From 0 to 250 mph, it stays in the same gear. I don’t know how it works exactly, but it seems to be a remarkable engineering achievement.