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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.

Race Recap: 2013 Bahrain Grand Prix follows the template of this year and last [spoilers]

The sand, the wind, the penalties, the contact and the one crash - all of them collided to make the Bahrain Formula One Grand Prix a surprise affair from day to day and lap to lap. Oh, and did we mention the tires? Pirelli made a last-minute swap after the amusement park ride that the Chinese Grand Prix turned into with the soft compound tire, and brought medium and hard compounds to the desert. That didn't stop things from falling apart for some teams - literally - and that didn't stop the one team that seems to love the hard compound Pirelli tire.

The Infiniti QX80 Monograph concept is fully revealed ahead of New York

The big Infiniti QX80, the largest SUV in the company's range and related to the Nissan Patrol sold around the world, is frankly in need of a facelift. The last time the big lug went under the knife was in 2014, and it was a pretty mild nip and tuck. The aging SUV was never much of a looker anyways, although it is certainly distinct. The Monograph concept, which is coming to the New York Auto Show next week, is a preview of where the QX80 is headed. And as we saw in the teaser last week, this styling direction is an improvement. The headlights migrate higher on the front fascia, making the thing look a little less like a sad porpoise and more like a tech-heavy SUV with serious presence. Some of this is simply concept car fantasy, sure – note the lack of mirrors, a favorite concept car trope that'll be replaced by real mirrors for production. But as Infiniti says, the concept "illustrates how the design of INFINITI's QX80 could evolve". Translation: expect the general shape and overall styling to make it to a production vehicle, unless somehow this concept gets roundly panned at the show. Since it seems to be an inarguable improvement over the current vehicle, the inevitable march towards production seems assured. Related Video: Design/Style New York Auto Show Infiniti SUV Luxury infiniti qx80 infiniti qx80 monograph