Two turbos also allow engineers to stagger the way boost is generated, by having one small turbo that gets working at lower revs, then a big turbo for maximum boost at high revs. Here are 17 times ...

Not since the Citroen 2CV has a car been sold to the mass market with a two-cylinder engine ... out over 100 hp per liter thanks to the turbo. Torque ratings are being pegged at around 88 ft ...