2008 Infiniti G37 Sport Coupe 2-door 3.7l on 2040-cars

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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 Q80 Inspiration imagines future of brand's luxury flagship

Infiniti is among the best of the non-exotic brands when it comes to crafting concepts, with designers who just seem to know how to show a truly wild vehicle with subtle hints at a future model. Just take a look at its latest Q80 Inspiration at the 2014 Paris Motor Show to see what we mean.
Infiniti claims that the Q80 imagines how it would build a future, fullsize luxury sedan to take on the stalwart Mercedes-Benz S-Class. However, in the current form it seems like a flight of fancy. It's packed with fabulously weird styling tricks, including birdwing-shaped headlights. There's also the roof and windshield that look at first glance to be a single piece of teardrop-shaped glass terminating at a boat-tail rear. In addition, the Inspiration has every concept designer's favorite gimmick - suicide doors.
Under the hood sits a twin-turbocharged 3.0-liter V6 and electric motor hybrid with a claimed 550 horsepower. The company asserts that the powertrain is actually on the way in the next two years and could do 43 miles per gallon (5.5 liters per 100 kilometers), though it's not specified on what driving cycle that's calculated on.

2013 Infiniti QX56 [w/video]

Promising, And Delivering, Bigness
Some things appear much smaller in pictures than they do in person. The Eiffel Tower, Space Shuttle orbiters and the statue of Abraham Lincoln in the National Mall come immediately to mind. The 2013 Infiniti QX56, however, isn't one of those things.
The Infiniti flagship sport utility looks massive in pictures, and it grows to simply colossal when you are standing next to it.