2012 Infiniti G37 X Sport Coupe 2-door 3.7l on 2040-cars

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A look inside Infiniti's variable-compression engine

We're sympathetic to anyone who had trouble understanding what's going on with Infiniti's new variable-compression engine. While we got a full tech briefing on the novel VC-Turbo back in August, the visual aids were lacking. The cutaway engine Infiniti brought to the Paris show fixes all of that. You can thank the little green and pink lines on the cutaway for making the whole idea a little more clear. Click through the gallery to see two lines – one green and one pink – that represent the different strokes allowing for different compression ratios. Remember, the compression ratio is the amount of volume in the cylinder on intake compared to the amount at the end of the compression stroke. Leave more room at the end and you lower that ratio. The length of the stroke doesn't change with this system, but where it sits along the cylinder does. Hence those two lines. The variable compression ratio allows this new turbocharged engine to maximize fuel economy when the turbo isn't needed by raising the compression ratio. It will see its first use in the next Infiniti QX50 crossover, previewed by the QX Sport Inspiration concept that's also on display in Paris, and has performance targets of 268 horsepower and 288 pound-feet of torque. After, it will migrate to other Infiniti and Nissan vehicles, with transverse front-drive-based applications first in line. Eventually, it's likely to completely replace Nissan's corporate 3.5-liter V6. We'll be poking around the engine a little more in Paris today to try and get some more info. For now, enjoy those cutaway images and those friendly little lines. Featured Gallery Infiniti VC-Turbo engine cutaway View 14 Photos Paris Motor Show Infiniti Nissan Technology Emerging Technologies engine 2016 paris motor show

2019 Infiniti QX50 Essential Drivers' Notes Review | Variable impressions

The 2019 Infiniti QX50 is the brand’s second smallest crossover, and itÂ’s fully redesigned for the 2019 model year. Infiniti decided to use the stylish QX50 as a technology flagship, specifically using it to debut its variable-compression engine technology. It has since been shared with Nissan in the new Altima, but Infiniti got the new 2.0-liter turbocharged four-cylinder first. It makes a solid 268 horsepower and 280 pound-feet of torque, numbers that are very similar to the outgoing QX50Â’s 3.7-liter V6. However, the 2019 QX50 with all-wheel drive (as our tester is equipped) nets you 26 mpg combined to the old carÂ’s 20 mpg combined rating. Infiniti pairs the new engine with its continuously-variable transmission. We happen to be testing the absolute pinnacle of what a QX50 can be: the “Essential” trim level. The base QX50 Pure starts at $37,645, whereas ours towers up to $59,085. That steep price is thanks to the addition of several high-dollar packages, including the $7,500 Sensory Package. This is the price youÂ’ll pay to get the ultra-luxe interior that we happened to fall in love with. The Autograph Package added $2,000, netting us white leather with the blue suede accents. Then the ProActive ($2,000) and ProAssist ($550) packages provide all the advanced driver assistance features like ProPilot Assist. Take note that the frustrating steer-by-wire (DAS) system is also included in the ProActive Package. Assistant Editor, Zac Palmer: When fully optioned as our QX50 Essential tester is, this interior can mix it up with the best in the business. You may have to sell a kidney to afford it, but the quilted white semi-aniline leather, soft blue suede and light maple (real) wood is going to make it all worthwhile. Infiniti certainly nailed it on the materials, but the interior design and styling flourishes are executed just as successfully. There's a simplicity to the flatness and gently curving horizontal lines that feels so graceful and luxurious. I feel that I'd never tire of the cream, brown and blue color combination, though that light-colored leather means I'd forever be trying extra hard to keep it clean. All of this interior loveliness was almost enough to make me forget about this crossover's interior tech shortcomings. Infiniti hasn't integrated Apple CarPlay or Android Auto, and the stock infotainment system isn't nearly polished enough to warrant such an omission.

2014 Infiniti Q50S

Ten years ago, nearly to the day, I took delivery of a brand-new 2004 Infiniti G35 6MT. The sporty rear-wheel drive sedan, equipped with its throaty 260-horsepower V6, slick manual gearbox and limited-slip differential replaced my 2001 BMW 330i because the Japanese competitor touted a product that was roomier, better equipped, quicker and lower priced. The G35 trumped the German in nearly every measurable category - at least on paper.
The 2014 Infiniti Q50 is the direct descendant, albeit two generations later, of the car I owned a decade ago. It is dimensionally about the same size, but it has gained more than 300 pounds of mass thanks to numerous safety upgrades and technical innovations. The additional weight is largely dismissed by a larger and more efficient powerplant that delivers an additional 68 horsepower, a welcome arrival, but the manual gearbox that charmed enthusiasts has been pushed out of the picture by a mandatory seven-speed automatic transmission.
As it has in the past, Infiniti touts its all-new Q50 as a luxury sport sedan worthy of the title. Decades ago, impressive performance statistics may have sealed the deal. Yet there is much more to the assignment today, as the model must offer premium appointments, sophistication and engaging driving dynamics if it's going to entice and capture the next-generation of young, premium buyers - much like the G35 did for me ten years ago.