Koenigsegg developed this gearbox / transmission for Jesko. It hypercar able to produce 1600hp just from 5.0 liter V8 engine. It also has 9 gears and 1 reverse, and Engine also doesn't have flywheel. The gearbox along with differential weighs only about 90 kg which is marvelous considering it can transmit that much power and has so many gears. Without use of any special materials this was achieved just by using clever Mechanics, by using principal of gear compounding. The video explains it in detail.