Christian von Koenigsegg is producing very impressive and beautiful cars, especially for a small outfit. One of his engineering marvels is his 'freevalve' engine design using pneumatic valve control rather than a traditional camshaft. It allows total freedom of valve lift and timing for great volumetric efficiency, torque and power. It is able to run on a range of biofuels with fewer constraints than traditional engines. It is really an engineering marvel and is the sort of engine that can complement electric vehicles in a cleaner air future. The tiny and very powerful 3 cylinder with this advanced system along with the electric drivetrain allows the incredible packaging of the Gemera. He also has a Tesla Model 3 as his everyday vehicle. https://www.freevalve.com