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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

Recharge Wrap-up: Fisker takes apart Finland assembly, Nissan Leaf sales in Europe expected to grow 25%

The Fisker Karma's Uusikaupunki, Finland production lines are being dismantled. The lines, operated by Valmet Automotive in the same plant that assembles the Mercedes-Benz A-Class, have been idle since Fisker's money woes brought them to a halt in 2012. Fisker, which has since been purchased by Wanxiang, and Valmet are still in talks over future collaboration. Read more at YLE. Nissan expects a double-digit percentage growth in Leaf sales in Europe in 2015. Nissan Europe's Jean-Pierre Diernaz puts that number at around 25 percent over 2014's record sales. Part of this is due to much lower prices than earlier model years, thanks to government incentives and lower production costs than earlier model years. Diernaz also said that the e-NV200 van will make up about 20 percent of Nissan's EV sales in Europe. Read more at Automotive News Europe. EV drivers pay less on average in taxes than gasoline vehicle drivers in every state except Virginia. Some states impose extra taxes and registration fees for EVs to make up for lost revenue from fuel taxes, but EV drivers still come out ahead, even when compared to high-mileage cars like the Toyota Prius. Even in Wisconsin - which might follow Colorado, Nebraska, North Carolina, Virginia and Washington in added EV fees - those who drive electric should fare better. Virginia, however, charges EV drivers an extra $114 annually across two added fees, while gas drivers would only get dinged about $35.10 in gas taxes in a 50-mpg car. Read more at Green Car Reports. Two hydrogen-powered electric bus prototypes will be deployed on a trial basis Hamburg, Germany. The Solaris articulated electric buses use fuel cell range extenders from Ballard. The buses were unveiled on December 18, and will go into operation in January 2015. The German government is funding the trial, and Hamburg aims to cease the purchase of diesel buses by 2020. The new-generation fuel cell system in the two Hamburg buses improve upon Ballard's previous design by using fewer parts and exhibiting less parasitic power loss from the integrated air compressor and coolant pump. Read more at Ballard's website. Featured Gallery 2012 Fisker Karma: Second Drive View 30 Photos Related Gallery 2013 Nissan Leaf View 55 Photos News Source: YLE, Automotive News Europe, Green Car Reports, BallardImage Credit: Copyright 2014 Drew Phillips / AOL Green Fisker Nissan Alternative Fuels Transportation Alternatives Electric Hydrogen Cars recharge wrapup

Nissan Leaf Nismo RC Concept [w/video]

Nissan took the wraps off its Leaf Nismo RC Concept at the New York Auto Show more than two years ago. As inferred, the vehicle shares many of its pure-EV components with the production Leaf currently sitting in your dealer's showroom. But don't assume the concept is a placid, family friendly, four-place, front-wheel-drive plug-in for grabbing groceries - the RC (as in "Racing Challenge") is a purpose-built, two-seat, rear-wheel-drive prototype race car tuned for the short track.
The RC Concept is fitted with an 80-kW AC synchronous motor driving the rear wheels and drawing power from a 48-module lithium-ion battery. While the motor and battery are nearly identical to the consumer-friendly Leaf, a sleek full carbon-fiber monocoque body shell and a slew of other enhancements mean the RC is 40-percent lighter, a foot shorter in overall height and nearly seven inches wider than its commuter namesake. Nissan says the RC Concept will hit 62 miles per hour in about 6.8 seconds, top out at 93 mph and run for about 20 minutes under race conditions (it will accept an 80-percent charge in 30 minutes with a quick-charger). Understandably, if a zero-emissions motorsport series comes to fruition, the races would be short and nearly silent.
We caught up with the Leaf Nismo RC concept in Southern California, where we were offered the opportunity to zip it around a tight autocross at the former Marine Corps Air Station, El Toro.