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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

Infiniti confirms new "premium compact" to be built in UK

Aside from certain naming-related news, Infiniti has actually had some decent product news to announce this week. The company's president, Johan de Nysschen, alluded to a new 550-horsepower performance sedan, and now the automaker has confirmed that a new "premium compact" will go into production in 2015. Based on the fact that this new model will be built alongside the Nissan Leaf at the automaker's Sunderland, UK assembly plant, we could only hope that it's a production version of the LE Concept (shown above).
Sunderland already produces Nissan products like the Qashqai, Juke and Note, and as a part of an investment of 250 million British pounds (around $406 million USD) for the new model, the plant would add an extra 280 jobs with the capacity to build 60,000 of the new Infinitis annually. Adding the premium compact at Sunderland means that Infiniti will have to change its plans for another new model, a bigger "C-segment hatchback," which could very well be a production version of the Etherea Concept.

Nissan Qashai gets the Juke R treatment

It would appear that we're a little behind the times on this one, but a UK-based tuner of the Nissan GT-R is creating its own take on the lustworthy Juke-R starting with the Nissan Qashqai crossover. Severnvalley Motorsport claims to be the leading authority for tuning of the current GT-R in Europe. The outfit is now turning its attention to stuffing the drivetrain of a GT-R under the body of a Qashqai+2 - a seven-passenger compact crossover similar in size to our Nissan Rogue - resulting in the Qashqai-R.
The project started back in March when Severnvalley took delivery of a new Qashqai. After stripping the crossover down to its bare essentials and building a custom jig to support the body shell, it was then transferred onto an awaiting GT-R chassis. The crew aimed to keep Qashqai's appearance as stock as possible, but fender extensions and hood vents were required to accommodate the sports car underpinnings.
The white Qashqai-R seen above will be tuned to produce 900 horsepower, while a black version will get bumped up to 1,000 hp. And, looking at the build photos, we surmise that this project will take nothing less than a herculean feat of supercar determination before it's through.