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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

Toyota, Nissan, Honda will work together on hydrogen filling stations

Japan's own version of the Big Three is taking on a transportation effort that's a far cry from the large-engined history of General Motors, Ford and Chrysler. In fact, Toyota, Nissan and Honda are looking to do their part – and maybe a little more – for the environment by working together to collaborate on accelerating the deployment of hydrogen fuel delivery in Japan. More refueling stations means more convenience for prospective hydrogen fuel-cell vehicle owners. Toyota says the specifics, including investment amount and the number of stations to be deployed, will be "determined at a later date." Still, the effort dovetails with that of the Japanese government. That government announced a so-called Strategic Road Map for Hydrogen and Fuel Cells last June and subsequently said it would start offering about $20,000 worth of incentives for fuel cell vehicle buyers. In December, Toyota started selling its first mass-produced fuel cell vehicle, the Mirai, in Japan and said it would almost triple production to 2,000 vehicles in 2016 from 700 this year. Last month, the Tokyo government began talks with Toyota and Honda to collaborate on ensuring that there'd be at least 6,000 fuel-cell vehicles on Japan's roads in time for the 2020 Summer Olympics in Tokyo. Tokyo officials are looking to have 100,000 fuel-cell vehicles on the city's roads by 2025. Check out Toyota's press release below. Toyota, Nissan, and Honda to Jointly Support Hydrogen Station Infrastructure Development Toyota Motor Corporation, Nissan Motor Co., Ltd., and Honda Motor Co., Ltd. have agreed to work together to help accelerate the development of hydrogen station infrastructure for fuel cell vehicles (FCVs). Specific measures to be undertaken by the three manufacturers will be determined at a later date. For hydrogen-fueled FCVs to gain popularity, it is not only important that attractive products be launched-hydrogen station infrastructure must also be developed. At present, infrastructure companies are making every effort to build such an infrastructure, but they face difficulties in installing and operating hydrogen stations while FCVs are not common on the road. Following the formulation of its Strategic Road Map for Hydrogen and Fuel Cells in June 2014, the Japanese government has highlighted the importance of developing hydrogen station infrastructure as quickly as possible in order to popularize FCVs.

2017 North American Car, Truck, and Utility Vehicle of the Year finalists revealed

The finalists for the 2017 North American Car, Truck, and Utility Vehicle of the Year were announced Tuesday at AutoMobility LA ahead of the 2016 LA Auto Show. Approximately 60 judges, including Autoblog's editor-in-chief Mike Austin, evaluated over 40 vehicles and named three models as the finalists in each category. The award for the Utility Vehicle of the Year is new for 2017 and separates SUVs, crossovers, and minivans from pickup trucks. The finalists are: Car of the Year: Chevrolet Bolt Genesis G90 Volvo S90 Truck of the Year: Ford F-Series Super Duty Honda Ridgeline Nissan Titan Utility Vehicle of the Year Chrysler Pacifica Jaguar F-Pace Mazda CX-9 The winners for the 24th annual NACTOY awards will be named on January 9 at the Detroit Auto Show. Related Video: Chevrolet Chrysler Ford Honda Jaguar Mazda Nissan Truck Crossover Minivan/Van SUV Electric Luxury Sedan north american car of the year NACTOY