Infiniti Q50 Eau RougeInfiniti has sent the speculation mill into overdrive with the release of a video (below) previewing its Q50 Eau Rouge.

Does it confirm that Infiniti has fitted the Nissan GT-R engine to the Q50 supersaloon?

Set to debut at the 2014 Geneva Motor Show, the video showcases not the car itself but the sound of its engine – a “big personality, V-cylinder engine with forced induction,” confirms the Red Bull Racing title sponsor.

Boss Johan de Nysschen has already gone on record saying the engine will have around 500hp and 600lb ft of torque. (That latter figure is incredibly heady… perhaps he meant 600Nm, or 442lb ft of torque?)

And how much does the Nissan GT-R put out? Currently, 550hp… given how the Q50 is already sold in Japan as a Skyline, we’re joining the other speculators, putting two and two together, and coming up with a BMW M3 alternative with huge, huge promise.

What a way for Infiniti to immediately give the brand the instant kudos it needs to capitalise on those F1 connections. Can we see Vettel in this? You bet.

The fact Nissan’s VR38DETT engine is a V6 turbo with an incredibly high level of technological intrigue also fits with any F1 track-to-road line the firm may wish to make (although given its current issues with the 2014 Renault V6 turbo F1 engine, perhaps those connections won’t be fully pressed home just yet…).

“With its Formula One-inspired carbon fibre bodywork, we thought it only fitting the Q50 Eau Rouge’s beating heart was suitably sporting,” said de Nysschen.

“Our engineers have perfectly captured the tone of Infiniti’s take on premium performance, and a car that is as impressive as the Q50 Eau Rouge sounds is surely a car to challenge performance cars in the premium sector.”

Q50 GT-R? We hope so. After all, it’s not without precedent – the Nissan Juke-R has already borrowed this engine from the GT-R engineering fanatics.

Take a look and let us know below what you reckon…