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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.

These are the slowest-selling new cars of 2024

While overall sales numbers are a solid indicator of an automaker’s success, another metric can show how well its new vehicles resonate with buyers on the ground. iSeeCars recently released a list of the fastest- and slowest-selling new car companies on the market, and a handful of brands appear to have some catching up to do. Lincoln landed the “top spot” among slow-selling brands, taking an average of 82.6 days to move inventory. Infiniti wasnÂ’t much better, at 79.8 days, and Buick came third with 79 days to sell.  Slowest-selling new cars of 2024 Lincoln: 82.6 days to sell Infiniti: 79.8 Buick: 79 Audi: 75.1 Ram: 69.7 Ford: 68.1 Dodge: 67.4 GMC: 66.6 Acura: 65.4 Lexus: 64.5 iSeeCars executive analyst Karl Brauer noted that the fastest-selling brands, which include Toyota, Alfa Romeo, and Cadillac, likely move inventory because they resonate with buyersÂ’ desire for value and a compelling product. The study also noted that seeing GMC, Ford, and Ram so low on the list likely indicates slowing truck sales, which comprise a significant portion of those brandsÂ’ numbers. ItÂ’s also possible that buyers are turned off by higher prices from those brands. Fast-selling new car brands also appeared on the used car list, where Honda, Lexus, and Toyota dominated. Unfortunately for Lincoln, it also made the slow-selling used list, between Maserati as the slowest and Alfa Romeo in third. iSeeCarsÂ’ analysis also examined EV and hybrid sales and found that hybrids tend to sell much faster than their electric counterparts. In March 2024, new hybrids took an average of 49.5 days to sell, while EVs took 70.6 days. That again brings us to the price and value arguments, where hybrids are significantly less expensive than EVs, though charging and range concerns also likely play a role. By the Numbers Green Buick Infiniti Lincoln Car Buying

2018 Lincoln Navigator vs luxury SUV rivals: How it compares on paper

The all-new 2018 Lincoln Navigator is an impressive, luxury-lined beast. However, while its Black Label interior stood out most during our first drive of the new Navigator, it also seemed pretty clear that much of this full-size SUV was superior to the competition in a number of fundamental ways. Its Raptor-sourced 3.5-liter V6 had class-leading power for one, and its third-row seat seemed as spacious and comfortable as its rivals' are cramped and barely usable. To search for your next new vehicle, try Autoblog' s Car Finder. Yet, I wanted to take a closer look at how the Navigator fully compares on paper to its competitors - especially the Cadillac Escalade with which it most directly competes. The below spreadsheet should tell the whole story, but as you can see, there's an awful lot of class-leading green highlighter in the Navigator's column. The cargo volume and third-row legroom numbers are particularly telling, with the latter actually going up to 42.3 inches when you slide the second-row fully forward. Now, a few things to note about the above spreadsheet. The GLS-Class is also available as the GLS 550, which boasts a 4.7-liter V8 that just comes up short to the Navigator with 449 horsepower but has to deal with only 5,578 pounds. Its $94,950 price tag is comparable to the Navigator Black Label. Much of the LX 570's information is also applicable to the Toyota Land Cruiser, which, badge aside, could certainly be considered a member of this segment given its feature content and still-hefty price tag. It has better ground clearance and approach/departure angles than its Lexus sibling, along with an as-indicated lower price. Much of the Escalade's information also applies to the GMC Yukon Denali, while the Infiniti QX80 is applicable to the Nissan Armada. Related Video: Cadillac Infiniti Lexus Lincoln Mercedes-Benz SUV Luxury Off-Road Vehicles consumer lincoln navigator