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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:

Infiniti gets boiled down to four P's: Performance, passion, precision, provocation

So then we asked, "Well, what does that mean?"
We met Andreas Sigl, the global director of Infiniti's Formula One involvement (that's him above on the right), at the US Grand Prix in Austin last year, and our questions to him were aimed at understanding what Infiniti was doing and where it intended to go. In spite of regard for its products and increased sales, few outside - and even inside - Infiniti seemed to have a clear idea of what the brand stood for.

Infiniti's Vision for Gran Turismo revealed in full [w/video]

Just about any car has to be designed with some sort of limitations, whether it's a production car that has to be usable on the road, a racecar that has to comply with regulations, or even a concept car that does, at the end of the day, actually need to be crafted out of real materials and wheeled onto a stage. But the Vision Gran Turismo series imposes no such limitations. Designed only for a virtual reality, the project allows for designers to craft a purely fantastical design whose limits fall barely short of their own imaginations. It presents companies with the opportunity to represent their brand as they want to, so it comes as little surprise that every automaker from here to Hong Kong has been lining up to take part. And the latest is Infiniti. Previewed in a pair of teaser renderings barely over a week ago, the Infiniti Concept Vision Gran Turismo is a suitably striking addition to the virtual world of the Gran Turismo video game franchise. Designed at the company's Beijing studio, the brief calls for a 4.5-liter naturally aspirated V8 hybrid powertrain, with a front mid-ship layout driving a rear transaxle for ideal 45/55 front-rear weight distribution. Beyond that it's all flowing forms, extreme aero and signature Infiniti design cues like a widened version of the brand's trademark grille shape and the kink in the rear pillar. It's got butterfly doors hinged ahead of those spindly mirrors, center-lock alloys crafted from carbon fiber, deeply sculpted aerodynamic elements, a large boomerang-shaped rear wing and aggressive long-hood/low greenhouse proportions. It's F1 meets GT, to hear Infiniti tell it, and whether you've got a PS3 and a copy of Gran Turismo 6 to play around with it or not, you can check it out in the images above and the video below. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. Introducing the INFINITI CONCEPT Vision Gran Turismo The "INFINITI CONCEPT Vision Gran Turismo" has been released on "Gran Turismo 6", available exclusively on PlayStation®3. Infiniti has continued to break new ground in design since the brand was first established. This is a sensuous GT car brimming with the Infiniti philosophy. How to receive it After Update 1.15 has been installed, the car can be purchased from the [Vision GT] area within the [CARS] section in "My Home" (here, you can also find the car's presentation movie).