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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 Qs Inspiration shows itself before Auto Shanghai

Infiniti's shown off a bit of the Qs Inspiration concept before debuting the creased contrivance at Auto Shanghai next week. The concept serves a few purposes, the first to reimagine a future for sports sedans on a planet of crossovers and SUVs. The result blends a fastback with high sides that connect low ground clearance below and an elevated seating position above. The Japanese luxury maker is all about sedans, the Qs Inspiration signaling how a carmaker watching the bottom line can maintain its interest in the passe bodystyle. The concept previews a production model, and perhaps the design language and lingo we'll see spreading through the range. We're not sure how the low floor and higher roof work out in the cabin, but Infiniti mentions a "low-mounted powertrain and potent e-AWD system." That's undoubtedly the promise of the "all-new flexible architecture developed to accommodate high-performance electrified powertrains." Production-izing for a non-electric version would mean laying in a grille for the ICE, but an electrified version would have plenty of room for batteries and e-motors. Before that retail model, it's possible we'll see Qs Inspiration cues on the Q50 and Q70 sedans. Take a long gander at the profile and the way the roof slopes, and you'll notice an elongated GT-R glasshouse profile. On top of that, before Infiniti released official photos, a few images leaked from China showing other angles of the concept. The rectangular steering wheel and massive digital dash cluster probably aren't going anywhere beyond Shanghai, but if Infiniti can bring that glass roof to production, that's a win in our book.

Infiniti introduces Q70 Premium Select Edition to Monterey crowds

Infiniti has made its presence at the 2015 Monterey Car Week known, introducing a new version of its flagship sedan, the Q70. As far as special editions go, the new Premium Select Edition Q70 is fairly light on upgrades, going for minor aesthetic tweaks rather than rocking the boat too heavily. Unsurprisingly, one of the most obvious changes is down low, where Infiniti's stylists have fitted new 20-inch wheels. The gunmetal hoops are joined by dark chrome trim on the fascia, a new rear bumper, and a decklid spoiler. Buyers have the choice of two interior trims. There's Graphite and Stone, both of which feature semi-aniline leather, a "suede-like" headliner, and aluminum interior trim pieces. Infiniti isn't too picky when it comes to powertrains for the Premium Select Edition, although there are some restrictions. It can be had with both the 3.7-liter V6 and 5.6-liter V8 and in rear- or all-wheel-drive models. Weirdly, though, you can't get the stylish trim on the Q70 Hybrid or on long-wheelbase models. We can't tell you how much it'll cost to add the special-edition trim, because Infiniti did not deign to release pricing info. We can, however, tell you that the Q70 Premium Select Edition will hit dealers this November. Look for more, including live images of the new sedan, as the Monterey Car Week continues. Until then, scroll down for the official press release. Related Video: 2016 Infiniti Q70 Premium Select Edition debuts at Pebble Beach Concours d'Elegance PEBBLE BEACH, Calif. – Infiniti today announced that the new 2016 Infiniti Q70 Premium Select Edition will be on display this week in the Infiniti Pavilion at the Pebble Beach Concours d'Elegance. The specially equipped Q70 premium sedan will be available at Infiniti retailers nationwide beginning in November. "Following the introduction last year of the new Infiniti Q70 long-wheelbase model, we are continuing to expand our flagship Q70 sedan's portfolio of offerings," said Randy Parker, vice president, Infiniti Americas. "The new Premium Select Edition package gives the Q70 an extra touch of premium elegance that is right at home here at Pebble Beach – or in any neighborhood or driveway across the country." The Q70 Premium Select Edition's exterior offers dark chrome trim, a darkened lower rear bumper, a rear decklid spoiler and unique design and color 20-inch aluminum-alloy wheels with 245/40R20 all-season performance tires.