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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.

Popular Science magazine's Best Of What's New 2012 all ate up with cars

Popular Science has named the winners in its Best of What's New awards, the victors coming in the categories of aerospace, automotive, engineering, entertainment, gadgets, green, hardware, health, home, recreation, security and software. The automotive category did not go wanting for lauded advancements:
Tesla Model S: the Grand Award winner for being "the standard by which all future electric vehicles will be measured."
BMW 328i: it's 2.0-liter turbocharged four-cylinder gets called out for being more powerful and frugal than the six-cylinder it replaces.

2023 Infiniti Q50 Red Sport 400 Black Opal steals Midnight Purple thunder

The Infiniti Q50 Red Sport 400 gets a special wardrobe option for 2023, a Black Opal iridescent paint job that shifts from black to blue to green to purple depending on the light and viewing angle. The paint is matched with satin black badging and an exposed carbon fiber decklid spoiler, accessories certain to suit any of the color-shifted hues. Grouped into a Black Opal Edition Package, the styling upgrade adds $2,200 to the price of the Q50 Red Sport 400 that starts at $59,575 before options. The inclusion of the word "Edition" is the clue to this being sold in limited numbers. Infiniti didn't say how many would be offered for our market, but based on the historical connections Infiniti is making with this, we expect it won't be more than a few hundred. Black Opal on the Q50 wants to trace its lineage to the now legendary Midnight Purple II, a color introduced on the R34 Nissan Skyline GT-R in 1998. Quick history lesson: There was a Midnight Purple that first appeared on the R33 GT-R, known as Midnight Purple I or by its paint code LP2, but it was solid metallic purple. Nissan introduced the iridescence with Midnight Purple II (LV4) with a blue-green color shift on the R34 GT-R, then did it again with Midnight Purple III (LX0) that shimmered blue-orange. All three were limited editions, and all three get huge money at auction now. Nissan let loose an R35 GT-R with a Midnight Opal paint job for the 2014 model year, restricted to 100 units worldwide. The redux came for the 2022 model year with the GT-R T-spec that could be had in Midnight Purple, also limited.    That's where the Black Opal Edition Q50 Red Sport 400 gets its mojo from. The 3.0-liter twin-turbo V6 with 400 horsepower and 350 pound-feet of torque doesn't hurt, either.