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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 teases QX Monograph concept for Pebble reveal

Infiniti is planning on showing a new concept car during Monterey Car Week called the QX Monograph. In case you lost track of time, that’s next week, as the concept car will officially be unveiled on Thursday, August 17. Infiniti is planning on holding a press conference at The Lodge at Pebble Beach where Alfonso Albaisa, senior VP of design, will present the vehicle. Infiniti says the new concept will showcase the “future direction of InfinitiÂ’s design direction.” A single teaser image gives us a glimpse of the grille and the Infiniti logo on the front. There isnÂ’t a lot Infiniti is saying about the QX Monograph yet, but weÂ’re told it features “digital piano key” lighting, bold proportions and the aforementioned double-arched grille. Of course, since itÂ’s a QX model, we should also expect it to be an SUV concept and not any other body style. Beyond the concept car, Infiniti says itÂ’s bringing never-before-seen quarter-scale design models from Nissan archives to display publicly. In total, four of these models will be shown, including the 1916 DAT 41, 1966 Prince Skyline 2000-GTB, 1970 Nissan Skyline H/T and the 1995 Nissan Skyline GT-R. Related video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.

4 ways Infiniti’s Q Inspiration concept bridges present and future

Infiniti's new Q Inspiration concept is a striking fastback sedan that the company says reflects an inflection point for both the luxury brand and the broader auto industry itself. It represents a bridge between technologies. That's true in the literal sense; it employs Infiniti's new variable compression turbocharged engine technology, which provides performance features while maximizing efficiency, and bridges the gap to more advanced powertrains. It also features Nissan's ProPilot semi-autonomous driving technology. But it's also true for the concept car's design, which Infiniti says provides a simple, elegant solution to complex technological questions — offering a palate cleanser, if you will, for the complicated technologies hidden beneath the gleaming surfaces. Oddly enough, the futuristic-looking Q Inspiration owes a debt of gratitude to the Prototype 9, the concept based on a 1940s-style grand prix car that Infiniti released last year. Alfonso Albaisa, Infiniti's senior vice president for global design, said that project became "a kind of a blank canvas for us to play with" and allowed for new discovery and expression with minimal brush strokes. It also led designers back to Ma, the Japanese concept of mastery of empty space. We spoke with Albaisa about how the concept's design echoes the theme of bridging the present and future. 1. The cabin's forward proportion and roominess Using the space-efficient VC-Turbo engine gave the designers space to shift the cabin forward and move the A-pillars back, creating a more centered and elongated cabin, with maximum headroom. The interior is clean, with orange and black leather with orange accents and backlit birch wood accents. The center console is floating, providing seamless connectivity to technology and hiding mechanical elements. Albaisa says it's the first manifestation of Infiniti's new form language for an era of advanced powertrain and future technologies. 2. The grille In what Albaisa describes as "a little bit of an accident" and "kind of tongue-in-cheek," the Q Inspiration's grille is a kind of trompe l'oeuil phenomenon. From directly in front, you can see the small fins, but viewed from the side, they disappear. So much so that Albaisa said he was initially fooled. "From a functional point of view, we need to breathe," he said. "But I think in the future, where there'll be a lot different types of technology, probably the car can breathe less. So we don't need that dominating big open mouth.