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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.

Lotus could build production versions of Renault Alpine, Infiniti Emerg-E

As with one of those blockbuster three-team NBA trades that actually improves the fortunes of every team involved, a report in Autocar indicates that Renault, Infiniti and Lotus are in talks that could benefit both manufacturers and enthusiasts. Renault is considering a production version of the devil-in-blue Alpine A110-50 concept but has said that it "probably needs more than the Renault-Nissan Alliance on its own." Enter Lotus, whose Evora platform could supply the running bits for the mid-engined Alpine revival.
That same Evora platform, in range-extended 414E concept form, is the basis for the Infiniti Emerg-E concept. Even though a decision hasn't been made on the Emerg-E's production, it is still being developed and the company has admitted that it "could be built in Britain." For its part, Lotus has said that it's ahead of schedule on the Evora 414E, with its 408 horsepower, 738 pound-feet of torque and 30-mile electric range. Development funds from both Renault and Infiniti could help make all three cars a closer possibility.

Infiniti Vision Qe concept will preview the brand's first EV

Infiniti released a dark preview image to give us an early look at its next concept. Called Qe, the design study will make its debut in October 2023 and provide a glimpse at what the Japanese brand's first series-produced electric car will look like when it lands later in the 2020s. Details about the Qe concept are few and far between, and the dark picture published by Infiniti leaves a lot to the imagination. It shows light reflecting on what looks like a fastback-like silhouette, so we know we're not looking at a convertible or at a big, burly SUV like the QX80. We think we see four doors, but the bottom part of the car is obscured so it's too early to tell whether this is a low-slung sedan or a crossover. Out back, a rear light bar is seemingly integrated into a spoiler that's positioned above backlit "INFINITI" lettering. We'll need to be patient to find out more, but an earlier report casts a little bit of light on what to expect from the Qe. Although unofficial, it details four new Infiniti models due out in the coming years, and two are electric. The first is a replacement for the Q70. It will reportedly land by the end of 2026 as the brand's first electric car, and it will feature shorter overhangs as well as a longer wheelbase than its predecessor, which retired in 2019. The second was described by insiders as "a midsize crossover." That's all we know, but odds are the Qe previews one of these two EVs. Infiniti will fully unveil the Qe on October 24, 2023. It also pledged to announce "several stunning new models" at the unveiling event. We're notably expecting to learn more about the next-generation QX80, which was previewed by the QX Monograph concept in August 2023.