2011 Infiniti M37 X Sedan 4-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.

2014 Infiniti Q50

Avoiding An Identity Crisis... For Now
Infiniti is a brand that has been quietly undergoing major upheaval - and not just with the numbers and letters on its trunklids. Back in December, Nissan's premium brand rankled fans and pundits by announcing it would redo its alphanumeric nomenclature, yet that decision was but a PR speedbump - there are bigger fish to fry. After all, this is a marque that was on the chopping block just a couple of years ago, and now it has a major opportunity to succeed thanks to new investment, new independence (Infiniti is now responsible for its own design, engineering, marketing, quality and human resources), a new global headquarters in Hong Kong, and new marching orders from new leadership that calls for a revitalized and expanded portfolio.
Yet if you think that the Q-based naming convention is the first sign of the brand's new direction, you might have missed Infiniti's biggest signal flare: the 2013 JX crossover. Fine premium three-row crossover that it may be, it's still the first Infiniti in ages that operates without a scintilla of driving entertainment at the core of its genetic makeup. (The last - and perhaps only - previous example was also Pathfinder-based, the 1997 QX4). To be fair, three-row CUVs have a laundry list of priorities before driving enjoyment figures in, but the message the JX (henceforth known as the QX60) sends is clear: Infiniti is going after more segments and more customers. Plans are afoot to expand the company's product line by a whopping 60 percent over the next five years, and in short, that means Infiniti is no longer content to be the unsung Japanese BMW - it needs vehicles that satisfy a wider swath of consumers. Despite all this, Infiniti officials we spoke with were keen to assert that driving pleasure remains very much core to their mission, and to that of this 2014 Q50 in particular.

2014 Infiniti Q50 configurator comes alive

The G37-replacing 2014 Infiniti Q50 sport sedan launches in the not-too-distant future, and for those curious about how pricing and packages will shake out, the car's official online configurator has been launched. Here, you can build the Q50 or Q50 Hybrid of your dreams, with the cost of entry starting at $36,450 (plus $905 for destination).
Selecting the hybrid model adds $7,250 to that bottom line - mostly because the gasoline-electric version is only available in the Premium trim and higher, while the gas-only Q50 comes in a base guise. Adding all-wheel drive, which Infiniti has made available with either engine and on all trims, will set you back $1,800.
There are a number of packages available across the trims, including a $1,400 navigation pack that includes a spare tire kit, a deluxe touring pack that costs $4,700 (and includes the navigation goodies), and the upper-crust $7,900 technology package which gets you, well, everything. Put that all together on a Venetian Ruby Q50 RWD Sport like we did, and you're looking at $51,755 when destination has been added.