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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 readies Juke-based ESQ crossover specifically for China

When most luxury automakers started getting into SUVs and crossovers, they started at with the largest models, but have gradually been getting smaller. Think Lexus and the LX, Audi and the Q7, or BMW and the X5, and you'll see what we mean, because each of them has been steadily downsizing its crossovers ever since. But Infiniti is going even smaller. At least, in China, anyway.
That's where the luxury marque from Nissan will soon be offering the new Infiniti ESQ. The smallest of Infiniti crossovers has been developed in China, exclusively for the Chinese market to meet Chinese tastes. It shares its underpinnings with the Nissan Juke, but instead of starting with the base model, Infiniti China has started with the more potent Juke Nismo - complete with 1.6-liter turbo four producing 197 horsepower - and added on premium accoutrements. The exterior that appears to be differentiated by a new grille and wheels, featuring the ESQ logo instead of Infiniti's, but the same quirky styling that sets the Juke apart. Though all we can of the interior is the steering wheel, you can bet that Infiniti gave the ESQ a more luxurious cabin space, too.
Infiniti's global communications manager Stefan Wienmann told Autoblog that the company is "expanding [its] portfolio not only globally but also specifically in China," adding the ESQ to a market-specific lineup that includes long-wheelbase versions of the Q50 sedan and QX50 crossover. "We see specific sales opportunities in this segment," explains Wienmann, adding that a targeted project like the ESQ "also enables us to gain experience in positioning a new premium model to the 'new millennials', a customer group that is very important to us."

Nissan Pathfinder, Infiniti JX in transmission safety probe

Nissan may be forced to recall 110,000 Pathfinder and Infiniti JX35 crossovers, due to a number of customer complaints. Consumers report suddenly losing power, with repair facilities blaming the issue on faulty transmission cooler line connections. Both the Pathfinder and JX35 use a continuously variable transmission. As of right now, the only vehicles being investigated are from model year 2013.
Nissan has been cooperating with the National Highway Traffic Safety Administration, according to a report from Reuters, and it has developed a fix for the affected vehicles. It's not clear whether this will develop into a full-blown recall, as there have been no known cases of injuries or crashes. But with a potential 110,000 vehicles prone to sudden power loss, a recall seems to be a likely outcome.