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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:

Nissan recalling 909k vehicles globally over accelerator issue

Nissan is issuing a massive recall that will see the Japanese automaker repair 908,900 vehicles worldwide, with nearly 100,000 of the affected models in the United States. While an official recall notice from Nissan or the National Highway Traffic Safety Administration is not yet available, Reuters has been able to confirm the recall with Nissan.
Nissan's recall is kind of the opposite of the Toyota unintended acceleration, in that it covers a lack of acceleration. According to the report, a sensor in the gas pedal can develop faults, leading to a sluggish acceleration or an outright stall regardless of how much throttle the driver dials in. The huge recall covers mostly Japanese domestic models like the Serena, X-Trail, Lafesta and Fuga, which make up for 764,800 of the 908,900 faulty vehicles. However, 98,300 Infiniti M sedans are being recalled in the US, although it's unclear at this time which model years and trims are affected. The remaining vehicles are found in Europe and Oceania, according to Nissan spokesman Chris Keefe.
No injuries or accidents have been reported due to the faults. The 90-minute repair will see techs replace the accelerator pedal and tweak the engine control programs. We'll update this story as soon as Nissan or NHTSA makes an official statement.

Infiniti lays out four upcoming models, electric future to dealers

Infiniti recently held a meeting in Los Angeles for approximately 200 of its North American dealers. Much of the talk was geared toward calming skeptical franchise owners about the brand's staying power. To bolster that argument, Infiniti corporate gave the retailers a sneak preview of upcoming models intended to liven up a portfolio that's largely seen as stagnant. As Automotive News reported, dealers were treated to a first look at two gasoline models and two electric ones. All four were either crossovers or SUVs. Firstly, an all-new QX80 is expected to debut for model year 2024. Infiniti plans to move it upmarket with a price tag north of $100,000 to compete with Cadillac and Lincoln. We would expect a starting price below the six-figure threshold, with only top trim models going over the line.  AN describes the QX80's exterior design as blockier than its predecessor's, with a new corporate grille. Details include "piano key" head and taillights as seen on the QX55, as well as Tesla-esque door handles that are flush with the paint when not in use. Using the next-gen version of the popular Nissan Patrol as its base, the flagship SUV will replace its 5.6-liter V8 with a twin-turbo V6 that puts out about 450 horsepower. That's 50 more than the V8, but should return better mileage than the current 15 mpg combined. Luxury features reportedly include an air suspension that lowers when parked to make climbing in and out less strenuous, a 24-inch display spanning the dashboard, and plenty of legroom for second- and third-rowers. Expect a summer 2023 debut.  An all-new model called the QX65 will be positioned as a Lexus RX rival. Though based on the QX60, which is itself based on the Nissan Pathfinder. It loses the third row for a more coupe SUV-like profile. It's described as having the grille of the upcoming QX80 but "shark fin taillights".  Infiniti was one of the first companies to proclaim an electric lineup within a certain timeframe. That date was 2030, but the brand now lags behind BMW, Lexus and others. AN's report has a new Q70 sedan going on sale by the end of 2026 as Infiniti's first all-electric model. Attendees recounted a design that takes off from where the discontinued Q70 left off but with proportions that include short overhangs and a longer wheelbase. A new lighting signature illuminates the full width of the car. Comparisons were drawn to the Tesla Model S and Porsche.