The Koenigsegg One:1 was built in just seven examples with the first being a working prototype. The name “One:1” is derived from the car’s amazing horsepower-to-kilogram weight ratio, which as you probably guessed is 1:1. A sibling of the 2013 Koenigsegg Agera R, the One:1 effectively raised the bar for performance and was dubbed the world’s first megacar, being able to produce a total of 1 megawatt of power (about 1341.02 horsepower.) It also produced a maximum torque of 1011 pound-feet at 6,000 rpm.
The most interesting part is that the One:1 is able to run on a number of different fuels, including normal gasoline, race fuel, and believe it or not, E85 biofuel. All six production models were sold out before the car even made its official debut, claiming around $2.4 million from the deep pockets of each purchaser.