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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.

2022 Infiniti QX55 Road Test | Yes, crossover coupes can be weekend warriors

SAUGATUCK, Mich. -- We almost didn’t take it. The 2022 Infiniti QX55 wasnÂ’t our first choice for a long weekend getaway to the frozen shores of Lake Michigan. No slight against this stylish crossover -- itÂ’s just not all that big. Especially for two adults, a preschooler, a golden retriever and all of the things needed for a winter vacation. The night before we left, in the drive-through line at CulverÂ’s, we decided: “Hey this thing is really nice. LetÂ’s hope everything fits.” More important decisions have been made with less thought, so the next morning I began packing the QX55. With 26.9 cubic feet, thereÂ’s actually more cargo space than coupe-styled crossovers like the 2022 Audi Q5 Sportback, Mercedes GLC Coupe and BMW X4. Still, the graceful rooflines limit storage capacity for all of these. In my mind, theyÂ’re more commuter crossovers. If you need real space, you would opt for the more upright QX50 and its 31.4 cubic feet of cargo room.  But what the hell is a cubic foot, really? Trunks and cargo areas are often as much about shape as they are about raw volume, and the QX55 turned out to be surprisingly roomy. I wedged a large Samsonite carry-on (19 inches long, 13.5 inches wide), a massive duffle bag, a box of food and stuff, a case of beer, a sled and a few other things, plus two heavy winter parkas laid over the top. For the return trip, we wedged even more stuff in there, including a trash bag filled with laundry and beer from the local brewing scene. On the way there, I could see out the back. On the way home, not so much. For more adventures in loading up the QX55, check out this luggage test. ThatÂ’s the tradeoff and something youÂ’ll want to consider if youÂ’re buying something like the QX55. You need to really like the styling, and this segment includes lookers like the X4, which are more compelling visually than their boxier brethren. The QX55 shares InfinitiÂ’s variable compression turbo, which makes 268 hp and 280 lb-ft of torque, so thereÂ’s no compelling powertrain reason to seek out the coupe version. Even though the 55 is more rigid than the 50, youÂ’d really need to be an engineer to notice the difference. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.   The steering is light and the suspension is tuned for comfort. If youÂ’re looking for a driver, consider any of the German competitors first, though the VC turbo is an interesting engine that has some heart.

Nissan sets 2017 sales record with help from Rogue, Titan, and Armada

Nissan Group said its U.S. sales climbed 1.9 percent in 2017 to an all-time record of more than 1.59 million vehicles sold. Free pizza in the conference rooms in Nashville, right? But a closer look shows the company mirroring overall industry trends, with plenty of declining-popularity cars but also a few aging trucks and SUVs. Taken together, Nissan's trucks, SUVs and crossovers saved the day, selling an all-time high of 765,624 total units, up 15 percent from 2016. That offset a 10.9-percent drop in sales of Nissan's cars, as volume sellers like the Altima and Versa posted steep drops. Also buoying overall results was the Infiniti division, which gained 10 percent from the previous year on the strength of models like the Q60 and QX30. Nissan's record year owes a lot to the Rogue, its compact crossover, which set an annual sales record with 403,465 vehicles, an increase of 22.3 percent. Sales of the Titan, Nissan's full-size pickup, grew an impressive 141.9 percent to 52,924 units, while the Armada, a full-size three-row SUV that was all-new for 2017, also saw a huge jump in sales (154.1 percent) to 35,667. Infiniti, meanwhile, saw overall sales climb 10.9 percent on the strength of huge gains by the Q60 Coupe, which rose 170.8 percent, and the QX30 crossover, which grew almost 524 percent. That being said, Infiniti volume is relatively low. The Q60 Coupe sold a total of 40,444 units and the QX30 14,093 for 2017, while Nissan shifted 40,172 Rogues in December alone. On the car side, the Maxima did well, gaining 7.9 percent to finish at 67,627. Volume-wise, the Sentra dominated, nudging up 1.7 percent to 218,451. But the rest of the lineup mirrored industry trends for the car segment, with steep drops for the Altima (down 17 percent), battery-electric Leaf (-19.8 percent), Versa (-19.2 percent) and Juke (-48.1 percent). Several truck, crossover and SUV models are also not faring so well. The aging Frontier pickup, last updated in 2005, fell 14.5 percent, the Pathfinder slipped by 0.8 percent, the Quest minivan plummeted 55.5 percent and the upscale Murano crossover fell by 11.8 percent. A Nissan spokesman says the Quest is no longer being built for the U.S. market starting with the 2018 model year. Meanwhile, reinforcements are coming. Nissan has said it's planning a new generation of the Frontier, its entry-level pickup, but hasn't clarified when.