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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 bringing 'New Sedan Concept' to Beijing Motor Show

During the 2014 Detroit Auto Show, Nissan showed off its Sport Sedan Concept (pictured above), an orange creation meant to foreshadow the next generation of the brand's "Four-Door Sports Car," the Maxima. For the 2014 Beijing Motor Show, though, Nissan is going to deliver a Chinese take on a future four-door, with the New Sedan Concept (imaginative name, we know).
Like the Nissan Friend-Me Concept from the 2013 Shanghai Motor Show, the NSC has been designed by Nissan Design China in Beijing. Outside of that, information is in short supply. Nissan claims this latest concept is targeted at the Chinese digital lifestyle. Whether it serves as an evolution of the Friend-Me's swoopy design or a regional take on Nissan's Detroit concept, though, remains to be seen.
We'll have the full slate of info on the Nissan New Sedan Concept, along with everything else that happens at the 2014 Beijing Motor Show, when the floor opens on April 23. Take a look below for the official press release from Nissan, which also includes a recap of previously debuted models that will be shown at Beijing.

Should you buy an EV?

Gas prices are hitting the skids and EVs are following suit; nearly every model in today's market has experienced a double-digit decline in sales – with the always notable exception of the Tesla Model S. Some EVs are in the last year of their generation while others have been half-heartedly designed and engineered to fulfill federal government quotas. The two non-Tesla front runners, the Chevy Volt and Nissan Leaf, are in the unfortunate position of offering customers "2015" vehicles that were designed with 2011 in mind. Yet there's plenty of love in the air. Nissan has built over 180,000 Leafs worldwide, and chances are you will be seeing a second electric vehicle accompanying the Leaf when the new generation is released in the coming months. The Chevy Volt now offers the highest customer satisfaction out of any car or truck sold in North America. Forget the luxury cars, the sports cars, the family trucksters, and even the rolling flagship that guides Tesla's jaw dropping valuation on Wall Street. You want happy with your EV? The brand that's rocking the segment right now is Chevy. It's been doing so for a while. The EV market is poised to become a lot more sophisticated over the next 18 months with the three leading manufacturers – Tesla, General Motors, and Nissan – launching five brand new models along with no fewer than 16 other manufacturers making many of their bread and butter cars available as plug-in hybrids. So, if you want to keep your money as far away from the Arab dictatorships and Russian mafia as Mercury is from Pluto, and enjoy your commute, we're more than ready to do our part! So let's begin with the most important question. What's Your Range? How much driving do you generally do in a day? If the answer to that question is 50 miles or fewer, an all-electric vehicle like the Nissan Leaf may be the best ingredient for your driving recipe. This is especially true if you have a second vehicle you can use for the occasional longer drive or are willing to rent for the weekend. But here's a little surprise for you. The upcoming Chevy Volt was designed to be driven in all-electric mode for over 50 miles. Fifty-three, to be exact. Plus, the Volt's battery has experienced a lot fewer deterioration issues than the Nissan Leaf's due in part to the Volt's liquid-cooled battery, which also uses a lot less of its capacity than the air-cooled Leaf's does.