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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

10 automakers shack up in Detroit hotel to talk Takata airbags

Since Takata has decided not to take the lead concerning potential issues with its airbag inflators, the automakers have. Perhaps that's unsurprising, since it's the automakers, not Takata, that will take a beating on the dealership floor if consumers decide its models are a health hazards. The Detroit News reports that Toyota, Honda, General Motors, Ford, Chrysler, Mazda, BMW, Nissan, Mitsubishi and Subaru met in a hotel conference room near the Detroit Metropolitan Airport last week to sort out a way to understand the technical issues involved. So far, faulty airbag inflators have been ruled the cause of five deaths and 50 injuries around the world, but neither Takata nor investigators understands exactly why the inflators are malfunctioning. The National Highway Traffic Safety Administration recently asked Takata to issue a national recall, Takata declined, citing a minuscule failure rate and the fact that it's still investigating the issue. Toyota and Honda then made an industry-wide appeal for "a coordinated, comprehensive testing program" that would pinpoint the problem inflators and get them replaced, and that's what the Detroit meeting was about. Numerous issues, however, will make this a long row to hoe: simply getting the parts to replace the nearly 20 million inflators in cars recalled around the world so far - even working with other suppliers - will take a years, but more importantly, no one knows if the replacement inflators currently being installed will suffer the same issue. Answers will hopefully come quickly with Takata, the ten automakers and NHTSA all independently investigating the problem.

Recharge Wrap-up: Nissan Leaf brake investigation, EV market will grow in China

Electric vehicles are expected to significantly cut into the gasoline-powered vehicle market in China. According to analysts at Frost & Sullivan, gas vehicles will drop to 94.9 percent of the market, while EVs will reach 4.2 percent by 2020. China's EV incentives, as well as a push in technology innovations, are credited for the rising popularity of plug-in cars. Despite awareness issues and supply shortages holding EVs back, "the Chinese powertrain market will remain buoyant, with increased customer purchasing power and self-esteem needs triggering vehicle sales," according to Frost & Sullivan researcher Ming Lih Chan. The big winners in this equation will be the suppliers of EV components in China. Read more in the press release below. The Canadian government is investigating possible brake failure issues with the Nissan Leaf. The Transport Canada investigation will look at 2013 to 2015 models, which could be experiencing brake malfunctions in severe cold weather. In the US, drivers have reported problems such as aggressive response to driver input and jerky braking, with some problems going away when the weather got warmer. NHTSA hasn't begun an investigation of its own, so far. Read more at Hybrid Cars. Sunspeed Enterprises has started an Indiegogo campaign to fund the installation of EV chargers along the Pacific Coast Sun Trail. As part of creating a 700-mile network of EV Infrastructure along the Pacific Coast Highway, this particular campaign is helping pay for a charging hub powered by renewable energy at the Madonna Inn in San Luis Obispo, California. Donors will receive rewards such as shirts and mugs, as well as charging credits and discounts. At the highest level, a $10,000 donation will net the donor free charging for life at any Sunspeed charging hub. Learn more at Indiegogo. Featured Gallery 2013 Nissan Leaf View 55 Photos News Source: Frost & Sullivan, Hybrid Cars, Transport Canada, Indiegogo Green Recalls Nissan Safety Electric recharge wrapup