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New details emerge on Inifiniti QX50’s unique new variable-compression engine

Infiniti will release the world's first production variable-compression engine when it releases the 2019 QX50 midsize SUV sometime next year. Now we have some new details on the innovative new engine, which Infiniti is calling VC-T, for Variable Compression Turbo, after the luxury brand offered a prototype test drive. We wrote extensively about the complicated technology underpinning the new engine last year. It's the latest novel development that could represent a range-extender, if you will, for the embattled internal combustion engine in an era when automakers and governments are shifting their focus to electric vehicles. The VC-T is a new inline-four, 2.0-liter that combines the power of a high-performance turbo gasoline engine with the torque and efficiency of an advanced diesel engine, but without the latter's notorious emissions. It features the ability to seamlessly raise or lower the stroke of the pistons in the combustion chamber, depending on the driving conditions it detects and inputs from the driver, to select the best compression ratio—anywhere between 8:1, typical for high-performance engines, and 14:1 for high efficiency. In essence, it delivers the performance of a V6 but is much more efficient, with improved fuel efficiency of between 10 to 15 percent with its best competitors, per Car and Driver. You can view how it works in motion via the video below. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. It's also quieter, more lightweight and compact than V6 engines with comparable power outputs, estimated at 268 horsepower and 288 pound-feet of torque. In a prototype test drive, Car and Driver writes that the engine "felt very conventional" and responsive, with strong and smooth acceleration. "The only indication you have that the compression ratio is changing is from an indicator in the instrument cluster next to the boost gauge." The engine is expected to deliver fuel economy gains of 27 percent in combined city-highway EPA rating over the outgoing QX50, which had a 3.7-liter V6. The 2019 model, fitted with the VC-T, should get about 26 mpg in combined fuel economy, and it will get to 60 mph almost one second faster than its four-cylinder counterparts, Nissan's chief powertrain engineer, Shinichi Kiga, told Automotive News. The VC-T engine is the result of 20 years of development spanning more than 100 prototypes and around 300 patents at Nissan.

Infiniti's QX50 Concept debuts in oh-so-close-to-production form in Detroit

Infiniti debuted the new QX50 concept today at the Detroit Auto Show, a preview of the midsize crossover set to hit the market soon and an evolution of the 2016 QX Sport Inspiration. This previews the followup to the current QX50, which debuted way back in 2007 as the Infiniti EX. The QX draws on Infiniti's current design language and looks like a slightly shortened version of the larger QX60. While this is still a concept, don't expect the full production version to stray too far from what we see here. Infiniti's press release is full of phrases like "driver-centric, passenger-minded" design, but in reality it's just a handsome but mostly traditional shape. The big news is that the QX50 will be the first application of Infiniti's trick variable-compression 2.0-liter turbocharged inline four. The engine's design promises both high horsepower and high fuel economy. Infiniti is claiming 268 horsepower and 27-percent better fuel economy when compared to the outgoing model. View 17 Photos Also coming on the new QX50 are a suite of active safety and autonomous features. While the details on both are extremely vague, Infiniti claims that the autonomous tech will allow the driver to retain ultimate control over the vehicle. That seems a bit counter to how autonomous driving works, so it will be interesting to see how the system actually functions. The active safety systems are said to be proactive, with future versions using lasers, radar, and cameras. While the outgoing QX50 was a rear-wheel-drive swoopy crossover, this new model appears to send power to the front wheels. Infiniti's release doesn't expressly say, but it does hint towards it with notes about a shorter hood and a "front-biased intelligent all-wheel drive system." This makes sense, and we don't see many enthusiasts lamenting the loss of a dated, rear-drive crossover. No word on pricing or when we'll actually see a production version. The current model turns 10 this year, albeit with a mid-cycle refresh. Look for news of a final production version very soon. Related Video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. Related Gallery Infiniti QX50 Concept View 24 Photos Image Credit: Live photos copyright 2017 Drew Phillips / Autoblog Design/Style Detroit Auto Show Infiniti Technology Emerging Technologies Crossover SUV Concept Cars Videos Original Video 2017 Detroit Auto Show infiniti qx50 variable compression ratio

Infiniti is pulling out of Western Europe, cutting models

BEIJING — Nissan's premium brand Infiniti has announced it will exit Western Europe early next year, as it restructures its global operations and focuses on the world's top two auto markets. Infiniti said it will discontinue the Q30 sedan and the QX30 sport-utility vehicle and cease their production by the middle of 2019 at Nissan's manufacturing factory in Sunderland, England. Both models are sold globally but produced only in Britain. The QX30 is sold in the United States. The move comes as Infiniti seeks to divert its resources to markets with bigger opportunities, such as China and the United States, from a region where non-European premium brands are struggling to compete against local players such as Audi, BMW and Mercedes-Benz. Nissan also recently scrapped plans to build its new X-Trail SUV in Britain amid the uncertainty surrounding Brexit, saying it had taken the decision to optimize its investments by building the next generation model in Japan. "Western Europe remains the most challenging and competitive region for premium cars," Infiniti's chief spokesman, Trevor Hale, told Reuters. Infiniti's sales in western Europe almost halved last year to 5,800 vehicles. In addition to the tough competition, the Japanese premium brand, headquartered in Hong Kong since 2012, has struggled to effectively meet emissions and other regulatory requirements in the region, Hale said, referring to stringent Euro 6 emissions requirements and other regulatory challenges. "The commercial reality for Infiniti in Western Europe is that there is simply no visibility of a viable and sustainable business, especially given the regulatory challenges," he said. Infiniti said an exit from Western Europe will allow it to focus on its initiative to electrify a good portion of its product portfolio from 2021 and discontinue diesel offerings. The brand plans to focus more on its SUV lineup in North America, bring five new or significantly-redesigned vehicles to China over the next five years, improve quality of sales and residual value and realize more synergies with Nissan. "This is all part of Infiniti's vision to become a top challenger brand in the premium segment," it said. As it prepares to withdraw from Western Europe, Infiniti said it is working to find alternative opportunities for employees who would be affected, consulting with employee representatives where necessary and identifying opportunities for transition and training support where appropriate.