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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

Nissan IDX production model to get sharper, less retro styling

The Nissan IDx seems like the type of concept that auto enthusiasts wish they could be driving. With a compact size, style inspired by the classic Datsun 510 and a rear-wheel-drive powertrain, it certainly ticks many of the boxes that people want. Unfortunately, the car seems to be miles away from actually getting a green light for production, but rumors about the retro coupe's future keep cropping up.
The last we heard about the IDx, the biggest complication with the coupe was that it was a tough project to make profitable. Nissan didn't have a cheap enough rear-wheel drive platform to make the affordable coupe work. The latest rumors point to a potential solution to this problem. According to Motoring from Australia speaking to an insider close to Nissan, the new plan is to tweak the styling to be less retro and adapt the car to work on the platform for the forthcoming, next-generation Z car.
The new look reportedly cribs from the Nissan Sport Sedan Concept from the 2014 Detroit Motor Show, including its floating roof design and sharper edges around the fenders. In terms of power, the source tells Motoring, the IDx could use a naturally aspirated 2.0-liter four-cylinder engine with around 180 horsepower on tap. That might not sound like too much, but remember the Z car itself is rumored to get smaller and lighter when it's new generation hits the stage. If the weight is low enough, potentially using it for the IDx might just work.

Recharge Wrap-up: Big Oil fails at renewable fuel, scientists study air with EVs, plug-in Panamera sales

Big Oil companies help keep renewable fuels out of your tank, a new report shows. No surprise there, right? The Renewable Fuels Association published a report card grading the country's largest retail gasoline chains on fuel offerings like E85 and E15. The report gave failing grades, with less than one percent of stations offering E15 or E85, to "Big Five" companies Exxon, BP, ConocoPhillips, Chevron and Shell, among other oil company and convenience/grocery store brands. The only major oil companies that didn't get an "F" were Valero (D), Cenex (B), and Marathon (A-). The eight companies that scored an A+ had at least 25 percent of their stations offering E85 or E15. Read more at Domestic Fuel.Leicester scientists are studying local air pollution using EVs. Beginning July 4, University of Leicester researchers began driving electric vehicles kitted out with special sensors to monitor air quality throughout the city (similar to how California does it). Now their emissions-free daily driving duties double as data collection for their studies. "By monitoring air quality as a seamless part of our daily transport system, we are providing a cost-effective way to help inform future policy and operational systems," says the University's Dr. Roland Leigh. Read more at Fleet News. "There is no doubt electric cars are the future." – Nissan's Andy Palmer Nissan is exploring the idea of taking its Leaf EV to India, but a lack of charging options is an obstacle. According to Nissan's chief planning officer Andy Palmer, "There is no doubt electric cars are the future. The product is there, what we need is infrastructure. Charging is a big challenge." Though Nissan stopped short of saying it (this time), this could possibly mean working with Mahindra, which said it is open to collaborating with other companies concerning EVs. Learn more in this article from the Hindustan Times and know that India is rolling out a plan to encourage the production and adoption of EVs. The National Electric Mobility Mission Plan will get over $2 billion in funding, and some of that will go toward creating a charging infrastructure (you hear that, Nissan?). This is good news for EV manufacturers, India's economy and people who enjoy breathing clean air. Read more at The Financial Express.Porsche has reported a significant sales increase, part of which is due to demand for the Panamera S E-Hybrid.