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Infiniti Q50 Eau Rouge Concept bows again, now with more GT-R [w/video]

Think back to the 2014 Detroit Auto Show and you'll remember the Infiniti Q50 Eau Rouge concept - a sedan that showed the potential design direction for a seriously high-performance take on the Japanese automaker's new entry-level luxury sedan. And while the show car we saw in Detroit was all well and good, it lacked something. Specifically, an engine. Kind of an important thing for a performance concept, right?
Here in Geneva, Infiniti rolled out that same Q50 Eau Rouge, but with one major modification: the sedan now boasts a twin-turbocharged 3.8-liter V6 under its hood - the same engine that's found in the Nissan GT-R supercar. In the Eau Rouge, this V6 is tuned to produce 560 horsepower and 443 pound-feet of torque, sent to the ground via the GT-R's all-wheel-drive system. Of course, this super-hot Q50 is still purely a concept, but Infiniti says that the potent engine underhood will allow the sedan to sprint to 60 miles per hour in less than four seconds, on its way to a top speed of over 180 mph.
The oft-fabled "four-door GT-R" still isn't confirmed for production, so for now, all we can do is cross our fingers (and toes). Check out the Q50 and its new beating heart in the gallery, above, and scroll below to hear what that potent Eau Rouge sounds like.

Infiniti's variable compression engine in the 2019 QX50 is the first of its kind

The world's first variable compression ratio engine is here, in a production car. That car is the 2019 Infiniti QX50, debuting this week at the Los Angeles Auto Show. The midsize crossover has seen a refresh that has brought it an all-new platform together with new driver assist features, but it's the engine that's the centerpiece here. Nearly everything is continuously variable under the hood of the QX50 – not only the new shift-by-wire XTRONIC CVT. The new VC-Turbo gasoline engine is able to change its compression ratio from 8:1 to 14:1, or anything in between depending of the driving situation; whether there is need for top-end power or turbodiesel-like torque from low revs, or optimized fuel economy. The pistons' reach is continuously adjusted by an electric "Harmonic Drive" motor, which controls a multi-link system, affecting the top-dead-center of the pistons and changing the compression. The engine can also switch between efficiency-maximizing Atkinson cycle and regular combustion cycle, on the go – and there's both multipoint injection and gasoline direct injection employed. The result is 268 horsepower at 5,600 rpm and 280 pound-feet of torque at 4,400 rpm; good figures for a 2.0-liter four-cylinder gasoline engine with a single-scroll turbocharger. Infiniti says that the FWD version's fuel economy of 27 miles per gallon combined is 35-percent better than the previous-generation V6 engine; in AWD guise, it reaches 26 mpg, which is a 30-percent improvement. The new engine is pretty much all-aluminum, but the vaguely magical-sounding "transformative multi-link components" behind the variable compression system are made from high-carbon steel alloy. The engine's multi-link system also enables it to do away with any balancing shafts, and Infiniti compares its smoothness to a V6 rather than a regular four-cylinder. In addition to the aforementioned tech, the VC-Turbo engine has the world's first active engine mount vibration damping system to smoothen its operation even further. Related Video:

Q50 Eau Rouge to kick off series of performance Infinitis

Infiniti is desperate to position itself as a brand for performance enthusiast. It's tried to create that impression by attaching its name to the Red Bull Racing team, by sprucing up the G37 Coupe and G37 Convertible as part of its lack-luster Infiniti Performance Line, and by bringing Sebastian Vettel on board to create a special edition FX crossover. But the Japanese luxury brand knows it's going to need something more comprehensive if it's going to go up against BMW and its M models, Mercedes and its AMGs, or Audi and its Quattro GmbH-tuned RS range.
That's why the Q50 Eau Rouge concept unveiled just last week at the Detroit Auto Show was so important to the marque. But Infiniti has more in store than just a concept. Nissan desires to put the Q50 Eau Rouge - named after the notoriously challenging turn at the Spa Francorchamps circuit in Belgium - into production with a 500-horsepower engine. But in speaking to Automotive News, Infiniti chief Johan de Nysschen hinted at more good news to come.
That could include a performance version of a new flagship sedan Infiniti is said to be working on, positioned above the current Q70 to fill the void left by the discontinued Q45 that capped the brand's range before it shifted its entire naming scheme behind it. The flagship sedan would need some serious muscle to challenge the likes of the Mercedes S63 AMG and Audi S8, but Infiniti seems bent on getting there. To cap it all off, Infiniti has long been rumored to be working on a halo sports car. Whether they'll all carry the Eau Rouge name, the IPL badge or some sort of other designator remains to be seen, but we'll enjoy seeing this development progress.