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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:

2024 New York International Auto Show Editors' Top 5 Picks

The New York Auto Show, like many other shows over the past few years, has shrunk. But it's still playing host to some interesting reveals, and we even got a few surprises this year. It was dominated by Nissan and Hyundai Motor Group products, but ones running the gamut from affordable cars to flagship SUVs. It was a strange situation of being both quite diverse in reveals, and not at all, depending on how you looked at it. Our favorites of the show are a clear representation of that. And another interesting observation, only one of the picks was significantly electrified. Scroll down to see the best reveals of the New York Auto Show,. 2025 Nissan Kicks View 10 Photos 5. Nissan Kicks "The Nissan Kicks has gone from a reasonably attractive and small crossover into something way more funky with cool textures, color combinations and some actual presence. Plus, it's more spacious, more powerful and has available all-wheel drive. If Nissan can keep the price nice and low to compete with similarly stylish and well-executed competition like the Chevy Trax, the company's got a real winner on its hands." – News Editor Joel Stocksdale InfinitiQX80-Z63-051 View 39 Photos 4. Infiniti QX80 "The QX80 wasn't technically shown at the New York Auto Show, but it was revealed just a week prior at Hudson Yards – accross the street, in other words. Frankly, I wasn't blown away by the initial photos, but I think it looks great in person. The attention to detail both outside and in seem appropriate for an SUV that Infiniti hopes to sell for six figures loaded up. I'm a believer." – Associate Editor Byron Hurd 2025 Kia K4 Live View 7 Photos 3. Kia K4 Sedan "The Kia K4 interior has way more style than anything in the compact car price range has any business having. Now, if we don't get the green interior option shown in the initial global reveal photos, I'm retracting several of my points here. Otherwise, wowza. I kept looking and looking at that K4 interior photo, and finding new, interesting details to admire. Oh, and the exterior is pretty cool, too, though I do prefer the hatchback in that regard." – Senior Editor, West Coast, James Riswick Genesis GV60 Magma Concept View 10 Photos 2. Genesis GV60 Magma "I am psyched to see Genesis show off a proper performance car. The “Sport” trims on its various models are sort of neat, but the Magma brand looks like the real deal.

Infiniti Q60 Concept paints a pretty picture of the brand's future

Infiniti's final teaser for the Q60 Concept may have given away the shape of the curvy coupe ahead of its debut at the 2015 Detroit Auto Show, but that's not necessarily such a tragedy for this model because the design has so many subtle touches. The more you look at it, the more cool details and ornate lines you notice. What initially looks fairly simple up front belies a multitude of fascinating details, including the F1-inspired lower air dam and the subtle fin at the tip of the hood. The design around the C-pillar may be complicated but is also attractive thanks to the confluence of design from the rear fender arch, beltline and crescent-shaped cutout in the window. The concept's interior also takes a minimalist approach. It's predominantly covered in cream leather and features sports seats in quilted leather. A mix of Alcantara and carbon fiber trim are able to show off the concept's performance intentions, though. Meanwhile the glass roof makes sitting behind the wheel feel airy and inviting. Underneath, the Q60 Concept's arching hood is the company's conceptual 3.0-liter, twin-turbocharged V6 and a seven-speed automatic. Infiniti promises the production of the mill is coming in the next two years. The big question is whether the mix of sharp edges and flowing lines on the Q60 Concept really see production without too much alternation. Infiniti plans to unveil the production version next year. Until then, check out how the model appears now on the floor of the Detroit show. Related Gallery Infiniti Q60 Concept: Detroit 2015 View 28 Photos Related Gallery Infiniti Q60 Concept View 28 Photos Related Gallery Infiniti Q60 Concept: Detroit 2015 View 14 Photos News Source: InfinitiImage Credit: Live photos copyright 2015 Drew Phillips / AOL Design/Style Detroit Auto Show Infiniti Coupe Performance 2015 Detroit Auto Show infiniti q60 infiniti q60 concept