The flagship has the same 3.8-litre twin-turbo V6 as the Nissan GT-R, which powers all four wheels through a seven-speed dual-clutch auto box.
"Building on the extremely positive feedback on the Q50 Eau Rouge at its recent Detroit Auto Show launch, we decided to further whet the appetite of performance sports saloon fans by engineering this powerful heart into our blood-red beast,” said Johan de Nysschen, President of Infiniti Motor Company Limited
For now, buyers wanting a petrol turbo Q50 will have to settle for the 2.0-litre, which debuted next to the Eau Rouge at the Geneva show.
This produces 211bhp and 320Nm of torque, and should be a lot more efficient and affordable than the 3.5-litre V6 hybrid when it hits dealers in the autumn. Expect performance to be competitive with that of its premium German rivals.