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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 plans overhaul of infotainment system by 2021

Infiniti is working on a fully overhauled infotainment system starting in 2021 that will feature bigger displays but retain the current dual-touchscreen setup. In the meantime, upgrades including Apple CarPlay and Android Auto connectivity will be added to existing systems starting next year, depending on the market. "Next year is going to be the first step of improvement," Infiniti's vice president of product strategy, Francois Bancon, told Australian outlet GoAuto. "And as we move forward with a bigger display, 12.0-inch, 15.0-inch, whatever, of course we are going to improve the accuracy." He also indicated that "only the media" complains about the dual-screen display and that customer feedback has been strong. "The appearance of the system, for example in QX50, which is the same as in Q50, we're not going to change. But we just redesign the whole system behind more capacity, faster reaction time, high-definition display and full connectivity." So the new system will keep the dual-screen setup, which today involves the top screen handling mostly navigation and redundant audio information while the lower screen is used to control vehicle, phone and audio functions (see the below video for more info on how it works). The QX50, which goes on sale in the United States later this year, will also be the first Infiniti to get a 9-inch color head-up display on the windshield, plus smartphone mirroring and data-derived weather and other apps. The rollout of a new infotainment system coincides with Infiniti's plan to build its first all-electric car in 2021 and release hybrids based on Nissan's e-Power technology. Parent company Nissan has said it wants to sell 1 million electric vehicles annually by 2022. Related Video:

Infiniti Q50 sedan recalled over steering software glitch

The Basics: Infiniti will recall around 60,000 Q50 sedans globally due to a glitch in the software that controls the cars' direct adaptive steering system. It's this hardware and software that allows the Q50 to steer itself autonomously under certain conditions. A total of 28,182 Q50 sedans will be recalled in the US, with another 3,804 in Canada. We're not certain yet which model years will be recalled, but the direct adaptive steering debuted in 2014. The Problem: According to Infiniti spokesperson Stefan Weinmann, "in certain rare circumstances, just after starting the vehicle" a software glitch "can lead to a lack of steering responsiveness and change in turning radius." Injuries/Deaths: None reported. The Fix: Infiniti hasn't yet announced how it will fix the issue, but a software update seems likely. That means a trip to the dealership. If you own one: Expect to hear from the manufacturer later this month or next. Related Video: Featured Gallery 2017 Infiniti Q50S 3.0t Recalls Infiniti Safety Technology Autonomous Vehicles Sedan infiniti q50