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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 spruces up Q70L Bespoke Edition for Shanghai [w/video]

"Luxury" is a relative term. Take the Infiniti Q70, for instance, which most of us would find plenty luxurious. But some buyers – in China especially – wanted more, so Infiniti stretched it out into the Q70L. And now it's revealed the even more luxurious Q70L Bespoke Edition. Revealed for the first time at the Shanghai Motor Show down the coast from the company's global headquarters in Hong Kong, the Infiniti Q70L Bespoke Edition is designed to "fill the gap between the current interiors in production cars and luscious interiors of Infiniti's concept cars." That's been materialized through a quilted white leather cabin space with four individual seats hewn "by meticulous craftsmanship and three-dimensional textures." It all looks pretty swank to us, but not the kind of space you'd want to put your kids in with their juice boxes, crayons and dirty soccer uniforms. Check it out in the video clip, high-res images and press release below. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. Apr. 19, 2015 Infiniti unveils Q70L Bespoke Edition at Auto Shanghai; joins Q60 Concept and Q80 Inspiration in show debut - Infiniti Q70L Bespoke Edition revealed with concept-car inspired interior - Q80 Inspiration and Q60 Concept vehicles also make China premieres - Infiniti design, plus Global and China growth, highlighted Hong Kong/Shanghai – Infiniti today took the covers off its Infiniti Q70L Bespoke Edition at Auto Shanghai 2015, showcasing its concept car-inspired interior for the first time in front of the predominantly Chinese crowd. The special version of the production Q70L, with a 5.9-inch (150 mm) longer wheelbase, features four luxurious seats wrapped in rich white quilted leather. This exploration is meant to fill the gap between the current interiors in production cars and luscious interiors of Infiniti's concept cars. Shaped by meticulous craftsmanship and three-dimensional textures, the cabin of the Q70L Bespoke Edition has been transformed into a cossetting space, hinting at how the artistry of Infiniti's concept cars can become reality. The production model of the Infiniti Q70, and two more Infiniti concepts – the Q80 Inspiration and Q60 Concept – were also making Auto Shanghai debuts.

US buyers show little interest in big hybrids

The idea of producing large, luxury-vehicle hybrids is turning into a "what were they thinking?" exercise in futility, USA Today reports. General Motors is discontinuing hybrid versions of the Cadillac Escalade, Chevrolet Tahoe and GMC Yukon SUVs, while Mercedes-Benz and Toyota's Lexus division are doing the same with their S-Class hybrid and LS hybrid sedans, respectively. The culprit? Big price increases for fuel economy improvements that border on the unimpressive. Granted, the Escalade hybrid gets 31 percent better fuel economy than the standard version, but that still maps out to a combined fuel-efficiency rating of just 21 miles per gallon. That can be seen as a worthwhile increase, if it didn't cost over $8,000 extra. The 2014 Escalade Hybrid, for example, starts at $74,425 while the non-hybrid can be had for $66,295. Meanwhile, the Lexus full-size hybrid costs $6,000 more than the regular version but only gets 1-2 mpg better combined fuel economy. The result of all these high costs? Low sales. Through April, GM sold 82 of its hybrid SUVs and pickups, down from 541 a year earlier. And the LS hybrid sales were in single-digit territory for April. That isn't stopping Lexus from promoting its hybrids as the right solution (with the wrong facts), though. There are still automakers giving big hybrid vehicles a shot, though. Nissan's Infiniti division is selling a hybrid version of its QX60 and says an impressive 10 percent of QX60 buyers choose the hybrid, which costs just $3,000 more. Looks like money talks. Featured Gallery 2015 Cadillac Escalade: First Drive View 35 Photos News Source: USA TodayImage Credit: Copyright 2014 Brandon Turkus / AOL Green Infiniti Lexus Mercedes-Benz Hybrid lexus ls gmc yukon mercedes-benz s-class infiniti qx60 chevrolet tahoe