Regera power sweep from 50 to 350 km/h #regera #koenigsegg #2000nm #1500bhp #megacar #directdrive #kdd #aboveandbeyond

A video posted by Koenigsegg (@koenigseggautomotive) on

The Koenigsegg Regera is a feast of numbers – “way over” 1,500 hp and 2,000 Nm, 0-100 km/h in 2.8 seconds, 150-250 km/h in 3.2 seconds and a top speed of 400 km/h, which it reaches in under 20 seconds. Where it does lack numbers is in its transmission. Actually, there’s no transmission at all – no gears, not even a Toyota Prius-style planetary gearset to manage the Regera’s engine and three electric motors.

So how does the hybrid hypercar sweep from 50-350 km/h as simulated in the video above? Well, in place of a regular gearbox the Regera features a hydraulic coupling that connects the 1,100 hp/1,250 Nm 5.0 litre V8 to the rear axle, acting as some form of clutch.

Pulling away from a standstill, the device is fully open, so the engine and crank-mounted electric motor are disconnected from the wheels; the legwork is done entirely through the two rear wheel motors providing direct drive (and torque vectoring). As speeds rise, the hydraulic coupling begins to close, engaging the crank-mounted motor; the engine kicks in at around 48 km/h.

Keep on accelerating and the now fully-closed coupling locks the engine to the 2.85:1-ratio rear axle and works with the electric motors to reach the 400 km/h top speed. It sounds pretty much like a CVT, except the Koenigsegg Direct Drive Transmission (KDD), as it’s called, drops the weight of a traditional gearbox, so the entire system weighs only 88 kg more than an engine mated to a dual-clutch transmission. Cool, huh?