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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

Mitsubishi admits to tampering with fuel economy data

Mitsubishi admitted this week to intentionally rigging fuel-economy testing in four of its models sold in Asia. The affected models are all so-called Kei class cars with sub-660cc engines manufactured at Mitsubishi's Mizushima plant in Okayama, Japan. About 157,000 of those cars are Mitsubishi eK wagons and eK Space models, and 468,000 are re-badged Nissan Dayz and Dayz Roox cars, which Mitsubishi produces for Nissan. The matter came to light after Nissan found inconsistencies in reported mileage data, which then led to Mitsubishi launching an internal investigation. The fraud was discovered to be related to falsified tire pressure data, which has an effect on mileage results – an important matter considering these kinds of vehicles are marketed by fuel economy. Mitsubishi said it has stopped manufacturing and marketing the affected vehicles. The news caused Mitsubishi's stock to plummet over 15 percent, slicing $1.2 billion off the company's value. When the eK models hit the market three years ago, they were decorated with a Good Design Award by the Japanese Ministry of Economy – a merit that is now surely tarnished. While Mitsubishi has been suffering in the US recently, with news of the Normal, Illinois plant closing, its small Mirage model has sold well. Related Video: Image Credit: Getty Images Green Plants/Manufacturing Mitsubishi Nissan Fuel Efficiency Hatchback Minivan/Van kei cars minicars

Recharge Wrap-up: Honda releases "Green Dealer" Guide, Tesla's China president steps down

Honda has released its "Green Dealer" Guide to the public. The guide, which is used to outline ways for Honda and Acura dealerships to be more environmentally responsible can also help other businesses take the same steps to green up their practices, save energy and even save money in the process. The guide, which ranks dealers based on a points system, provides incentive to dealerships to implement the environmentally practices, but it also helps Honda assert itself as a leader for green business. Read more at Automotive News or in the press release below. Nissan Leaf owners in the UK love their car, and aren't looking back at their fossil-fueled past. According to a survey by Nissan, 93 percent use the EV as their main family vehicle. 89 percent report saving money driving, 64 percent prefer it to driving a conventionally powered car and 95 percent would recommend the car to a friend. Most said they wouldn't go back to a gas or diesel car. One owner even gave up his Aston Martin for a second Leaf so he and his wife wouldn't argue over who got to drive the EV to work each day. That's love. Read more at Next Green Car and at Hybrid Cars. Renault has outlined its future sustainable mobility plans, including two pieces of technology going into production cars soon. Renault will put a smaller, more efficient electric motor into production, as well as a three-cylinder dual-fuel gasoline/liquid petroleum gas engine. The HYDIVU prototype will help Renault research mild hybrid technology for light commercial vehicles. The VELUD project will look into making the last mile of urban deliveries more sustainable. Renault is also testing a two-cylinder, two-stroke diesel engine for small vehicle platforms. Read more in the press release below. Tesla's China president has resigned. Veronica Wu had been in charge of the company's operations in China for the past nine months, and with her leaving the company, Tom Zhu will step into the role. Jochen Siebert of Shanghai-based JSC Automotive Consulting says that, "Tesla counts on China as one of their main drivers of growth after California, and it might have been more difficult than they thought." Tesla states it is still "confident in the Chinese market," where it has sold the Model S since April. Read more at Bloomberg.