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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 electric crossover will mark a milestone at Detroit Auto Show

In November, it was announced that both Nissan and Infiniti will display EV concepts at the 2019 North American International Auto Show in Detroit, taking place in January. Previously, it wasn't made clear what kind of vehicles they would be, but Infiniti stated today that its Detroit concept will be an electric crossover. Both the Nissan and Infiniti concepts will continue the design direction shown by Infiniti's Q Inspiration concept, and later next year, there will be stylistically similar cars shown at the Tokyo Motor Show in October. The luxury brand has released the above teaser photo of the crossover, depicting sharp headlights and a lit grille outline surrounding the badging. We can also see large wheels and tires and sizeable, defined wheel arches. Future Infinitis will be electrified from 2021 on, featuring either serial hybrid tech or full electric drivetrains. Serial hybrid refers to using Nissan's e-power technology, which relies on range extender engines instead of a large combustion engine (such as Infiniti's lauded VC-Turbo). The Detroit Auto Show is also a significant event for Infiniti, as the brand and its first car, the grille-less Q45 luxury sedan, was first displayed 30 years ago at the 1989 NAIAS. "Thirty years ago, as a 24-year-old designer in the audience, I saw the birth of Infiniti in person and am proud to be part of the journey of creating iconic luxury automobiles," said Nissan's senior vice president for global design, Alfonso Albaisa. Meanwhile, Infiniti's November 2018 sales were the best November numbers in the brand's history. "The concept car we will show in Detroit is the beginning of a new era for Infiniti, and an illustration of where we want to go with the brand," said Karim Habib, Infiniti's design director. Earlier, Albaisa echoed his statements, telling us how electrification can inspire the brand's future design thanks to the battery packs' size development, saying: "It's getting denser, it's getting thinner, the cars are able to get a little bit bigger, more space, we can really do much more." Related Video:

Infiniti Q30 is the company's first small hatchback

Well, here it is. Despite every attempt to show us the car via teasers, Infiniti has made it to the week of the Frankfurt Motor Show before introducing the all-new Q30, the company's version of the jointly developed Mercedes-Benz A-Class hatchback and the first compact from the Nissan-owned luxury marque. The Q30 will be available with a wide and varied array of gas and diesel powertrains for its appearances in other markets. There will be two 1.6-liter gas engines, in 120-horsepower and 154-hp varieties, and two diesels. The oil-burners, which will not be coming to the US, displace 1.5 liters and 2.2 liters, respectively. As for North America, the Q30 will follow in the footsteps of its Mercedes cousins, the CLA- and GLA-Class, and offer a single 2.0-liter, turbocharged four-cylinder with 208 horsepower and 258 pound-feet of torque. Although it displaces just as much as the CLA's 2.0-liter turbo and matches that car's output, enthusiasts will appreciate the six-speed manual transmission being offered alongside the Mercedes seven-speed, dual-clutch automatic. Say what you will about its Mercedes roots, but Infiniti's decision to offer a six-speed stick here in the US should be respected. The specific set of drive wheels isn't mentioned, although if the A-, CLA-, and GLA-Class are any indication, the Q30 will offer standard front-wheel drive and optional all-wheel drive. That's speculation on our part, but it's a logical assumption. The Q30 has retained the A-Class' front McPherson struts and rear multi-link suspension arrangement. But while it uses an identical design, Infiniti has tuned the shocks to its own specification. Depending on trim, the Q30 will ride on either 18- or 19-inch wheels. Speaking of those trims, there are three of them. The base trim is, um, basic – Infiniti spilled very little ink on the entry level model. In fact, aside from a few simple descriptions, equipment details on the other two trims are quite scarce. Choosing the Premium line will net you unique 18-inch wheels, LED fog lamps, heated door mirrors with body color housings, and twin chrome exhausts. The Sport brings a bit more to the table, making a functional change by lowering the ride height by 0.6 inches and fitting 19-inch alloys. Gloss black and dark chrome accents on the more aggressive front and rear fascias round out the exterior enhancements.