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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 GT-R, Infiniti crossovers over steering column issue

Nissan has discovered a problem with the steering column on some of its higher-end all-wheel-drive vehicles from a few years back, and has issued a recall in conjunction with the National Highway Traffic Safety Administration to address the issue. The issue revolves around the outer tube on the steering column, which may not be perfectly round. That would put extra stress on the upper steering bearing, which could cause it to fracture, disabling the car's steering ability and potentially leading to a crash. The problem affects Nissan's flagship GT-R supercar – specifically 2009 models manufactured between March 14, 2007, and April 25, 2008) as well as an array of Infiniti crossovers: namely the 2008 EX35 and the 2008-09 FX35 and FX45. In the case of the luxury crossovers, Infiniti dealers are being instructed to replace just the steering shaft, but Nissan dealers will have to replace the entire steering column assembly on the GT-R. All told, the recall is estimated to encompass 16,973 vehicles across the United States. RECALL Subject : Steering Column Tube may be Out of Round Report Receipt Date: FEB 02, 2015 NHTSA Campaign Number: 15V054000 Component(s): STEERING Potential Number of Units Affected: 16,973 Manufacturer: Nissan North America, Inc. SUMMARY: Nissan North America, Inc. (Nissan) is recalling certain model year 2008 Infiniti EX35 vehicles manufactured June 29, 2007, to April 25, 2008, 2009 Infiniti FX35 and FX45 vehicles manufactured October 31, 2007, to April 16, 2008, and 2009 Nissan GT-R vehicles manufactured March 14, 2007, to April 25, 2008. The steering column outer tube may not be round, resulting in extra stress being applied to the upper steering bearing. This stress may cause the bearing retainer to fracture, creating extra play in the steering wheel or a possible loss of steering. CONSEQUENCE: Extra play in the steering wheel or a loss of steering may increase the risk of a crash. REMEDY: Nissan will notify owners, and dealers will replace the steering shaft on the Infiniti EX35, FX35, and FX45 vehicles, and will replace the steering column assembly on the Nissan GT-R vehicles, free of charge. The manufacturer has not yet provided a notification schedule. Infiniti owners may contact customer service at 1-800-662-6200. Nissan owners may contact the GT-R hotline at 1-866-668-1487.

Nissan recovery to focus on U.S., Japan, China markets

Nissan will pull back from Europe and elsewhere to focus on the United States, China and Japan under a plan that represents a new strategic direction for the embattled carmaker, people with direct knowledge of the plan told Reuters. The "operational performance plan" is due to be announced on May 28 and goes beyond fixing problems from ousted leader Carlos Ghosn's aggressive expansion drive, the people said. The company's struggles predate the current global economic shutdown. Nissan's 2019 sales slumped severely.  Nissan was already planning to implement what was described as a "do or die" plan in January, before the global coronavirus pandemic froze automotive production and sales worldwide.  Pursuit of market share, particularly in the United States, led to steep discounting and a cheapened brand. Under the new, three-year plan — reported here for the first time — Nissan aims to restore dealer ties and refresh lineups to regain pricing power and profitability, the people told Reuters. "This is not just a cost-cutting plan. We're rationalizing operations, reprioritizing and refocusing our business to plant seeds for the future," one of the people said. The plan also aims to cut competition and expand cooperation with alliance partners, the people said. Nissan will follow Mitsubishi in plug-in electric hybrid vehicle technology, with the smaller peer taking the lead in Asian markets outside China and Japan. France's Renault will likely focus on electrical vehicle technologies and Europe. Nissan and Mitsubishi declined to comment. Renault did not immediately respond to a request for comment. The plan, led mainly by Chief Operating Officer Ashwani Gupta rather than Nissan's low-key chief executive, Makoto Uchida, is aimed at freeing resources to invest in products and technology for the United States, China and Japan, the people said. "The net effect is even though we reduce our R&D spend this year versus last year and make other savings, we pump those freed-up resources back into core markets and core products," said one of the people, who declined to be identified as they were not authorized to speak with media on the matter. The plan is likely to take up to two weeks to be finalized, with sales and earnings targets complicated by the anticipated long-term impact on auto sales of government measures worldwide taken to stop the coronavirus outbreak, the people said.