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New details emerge on Inifiniti QX50’s unique new variable-compression engine

Infiniti will release the world's first production variable-compression engine when it releases the 2019 QX50 midsize SUV sometime next year. Now we have some new details on the innovative new engine, which Infiniti is calling VC-T, for Variable Compression Turbo, after the luxury brand offered a prototype test drive. We wrote extensively about the complicated technology underpinning the new engine last year. It's the latest novel development that could represent a range-extender, if you will, for the embattled internal combustion engine in an era when automakers and governments are shifting their focus to electric vehicles. The VC-T is a new inline-four, 2.0-liter that combines the power of a high-performance turbo gasoline engine with the torque and efficiency of an advanced diesel engine, but without the latter's notorious emissions. It features the ability to seamlessly raise or lower the stroke of the pistons in the combustion chamber, depending on the driving conditions it detects and inputs from the driver, to select the best compression ratio—anywhere between 8:1, typical for high-performance engines, and 14:1 for high efficiency. In essence, it delivers the performance of a V6 but is much more efficient, with improved fuel efficiency of between 10 to 15 percent with its best competitors, per Car and Driver. You can view how it works in motion via the video below. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. It's also quieter, more lightweight and compact than V6 engines with comparable power outputs, estimated at 268 horsepower and 288 pound-feet of torque. In a prototype test drive, Car and Driver writes that the engine "felt very conventional" and responsive, with strong and smooth acceleration. "The only indication you have that the compression ratio is changing is from an indicator in the instrument cluster next to the boost gauge." The engine is expected to deliver fuel economy gains of 27 percent in combined city-highway EPA rating over the outgoing QX50, which had a 3.7-liter V6. The 2019 model, fitted with the VC-T, should get about 26 mpg in combined fuel economy, and it will get to 60 mph almost one second faster than its four-cylinder counterparts, Nissan's chief powertrain engineer, Shinichi Kiga, told Automotive News. The VC-T engine is the result of 20 years of development spanning more than 100 prototypes and around 300 patents at Nissan.

2022 Infiniti QX55 First Drive Review | A gorgeous value

Looking at the luxury crossover market, you can probably guess that there’s a clear demand for fastback variants. All the German automakers offer multiple coupe-like crossovers. The rest of the industry hasn't been so sure, including Infiniti, which didn't originally plan to offer a rakish version of its QX50. Yet here is the 2022 Infiniti QX55, and it's the direct result of customer demand. The people wanted it, so Infiniti brought it.   The company didnÂ’t just stop with the low, curvy roofline, though. The front fascia features a wavy, almost sculptural grille, a deeper chin spoiler and crisp black accents around the outboard grilles. The rear gets wider taillights with pronounced LED segments and a diffuser between the tailpipes. The license plate has been moved to the bumper, too, so that you get a big Infiniti badge and proud brand lettering across the hatch. On top of that, every QX55 gets big 20-inch wheels. These detail changes, plus the new roof make this not only a much more attractive-looking iteration of the QX50 but also arguably the best-looking crossover “coupe” in the segment. InfinitiÂ’s flowing design language naturally complements the QX55Â’s shape, and it looks almost like it was designed to be this way in the first place, whereas competitorÂ’s SUV coupes tend to look like afterthoughts. Mechanically, the QX55 is nearly identical to its boxier QX50 sibling. The only main distinctions are that the QX55 comes with all-wheel drive as standard, and the new body actually improved chassis rigidity by 10%. The engine is the same turbocharged, variable-compression 2.0-liter four-cylinder from the QX50 making the same 268 horsepower and 280 pound-feet of torque. Fuel economy is also identical at 22 mpg city, 28 mpg highway and 25 mpg combined. Power goes through a CVT, which again, is basically the same as the QX50Â’s. ItÂ’s not the smoothest engine in the segment, but itÂ’s a responsive and playful one, delivering great low-end torque. The CVT is smooth and reacts quickly to acceleration demands. It has a manual mode that works decently, too, but you never have full manual control. So you might as well let it do things automatically, which is no bad thing. As for the ride and handling, the QX55, even with its extra rigidity, feels just like the QX50. It has a soft, plush ride and an extremely quiet cabin befitting a luxury car. But when itÂ’s time to corner, itÂ’s deeply disappointing. ThereÂ’s lots of body roll and understeer.

2022 Infiniti QX60 spied running around post-Monograph Concept reveal

Infiniti recently revealed the QX60 Monograph Concept, a concept crossover meant to preview the next generation QX60. Today, the first spy shots of the QX60 in production form hit our desks. There’s a whole lot we canÂ’t see under the camouflage, but it looks fairly representative of what we expect a production version of the Monograph Concept would look like. The headlights, grille design, lower opening and side air intakes all look like they were pulled straight off the concept. It also has the same hood design with raised outer edges that lead right into the A-pillar. Its droopy side camouflage does a good job of disguising its curvaceous profile and pronounced rear fenders. We can see a hint of widening at the rear fenders, and we hope that the MonographÂ’s look is translated over to production there. The mirrors were moved further down onto the doors, and the flush door handles are done away with. This tester appears much less flamboyant with normal-size wheels replacing the giant and dramatic spinners on the Concept (gallery of the concept below). Infiniti QX60 Monograph View 36 Photos Infiniti is copying the shape of the rear over to production. We can clearly make out the raked rear window, overhanging spoiler and rounded shape of the back end. The taillights are a bit difficult to see, but their general design matches up to the Concept. As for the fancy chromed exhaust area on the concept, those spots appear flat and barren on this preproduction model. ItÂ’s still heavily covered in camo, though, so we donÂ’t yet know what the rear bumper design will look like in its final form. The production QX60 is set to be revealed next year where it will likely go on sale as a 2022 model year car. ItÂ’s unclear what powertrain(s) will be lurking under the hood, but at least we know the production version wonÂ’t stray terribly far from the concept now. Related Video: