Some cars have one turbocharger. Many have two. Some performance cars have four. But three? Only one triple-turbo engine was ...

In a regular turbocharger, the compressor wheel and turbine wheel are connected by a short shaft, with the respective housings mounted directly back to back. However, Mercedes realised there were ...

To get there, Audi employed two conventional, sequential turbochargers and a third compressor that – in an industry first that's been a long time coming – is powered electrically. The ...