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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 pokes fun at Tesla's New Jersey woes, then deletes Tweet

Ever have one of those moments when you release something out onto Twitter, only to think better of it a little while later and reach for that garbage can icon? If so, you are not alone. In fact, you're in the company of a certain Japanese automaker, who recently joined the ranks of those who've suffered an embarrassing bout of tweetus deletus. The Nissan Leaf social media team apparently thought it would be amusing to take a light poke at Tesla Motors and its New Jersey dealer fight woes on its Twitter feed and put together the cheeky graphic which you see above. It was originally published on the micro-blogging network accompanied by the text, "It's okay #NewJersey, you can still #GoElectric with the #NissanLEAF #EV." Funny, right? Not to everyone. The image attracted a bit of mild criticism which, to their credit, Nissan responded to saying, "It's all in #EV love." Soon, however, the original image disappeared from the @NissanLEAF feed. Luckily, we saved a copy for your edification. Rob Robinson, senior specialist of social communications for Nissan, told AutoblogGreen that the Leaf Twitter account is run by an agency, and that the tweet in question, "Was not a tweet that was reviewed or approved by Nissan. We saw it and asked them to take it down." As for the reasoning, Robinson said that, "We thought it was a discussion we didn't need to be weighing in on." While we can see the Nissan point of view, we also appreciate the attempt at being irreverent. Anything to break up the monotony of the stale toast the account usually offers up – "What would you nickname your Nissan Leaf if it was Ocean Blue?" which is the last undeleted Tweet available on the feed, as of this writing. We actually applaud the intention of the Tesla post. It all makes us wonder, though, if the social media team over there isn't in need of a little input on how they might improve its outreach. Since we know our readers are not shy in offering suggestions, we ask you to leave your thoughts and ideas for them in the Comments.

Datsun Redi-Go is reborn brand's first concept car [w/video]

Nissan's plan for its reborn Datsun sub-brand just got a shot in the arm, as the emerging-market manufacturer has unveiled its first concept car since its resurrection back in 2012. Called the Redi-Go Concept, it looks like a high-riding version of Datsun's recently launched Go hatchback that's been fitted with a few concept car cues (not a bad thing).
The Redi-Go packs LED taillights, Datsun's "D-cut grille" and LED running lights into its Go-inspired body. Funky two-tone 15-inch wheels add a bit of cheek to the overall design, and in our minds look quite good, despite being so small. The ruggedized front and rear bumpers, as well as the sill and wheel arch surrounds add to the Redi-Go's rough-and-tumble aesthetic. We like that Datsun has kept the overall package short, giving the Redi-Go a 92.5-inch wheelbase, rather than creating a lifted version of the upcoming Go+. There are no specific mentions of the Redi-Go's mechanicals, although we'd wager that a production model might share the 1.2-liter engine and five-speed manual found in the standard Go.
While it might be easy to dismiss a concept like the Redi-Go in America, there's no denying its importance to the Indian market, which is decidedly more limited when it comes to available bodystyles. "If we were to make a car like Datsun Redi-Go Concept it would be a segment creator in India, an aspirational car that at the same time is attainable, a car that would be within reach of the first time buyer. This concept shows how serious we are about reinvigorating the market by catering for the needs of a growing class of Indians who have the chance to own a family car that will enable them to enjoy a new sense of independence," said Vincent Cobee, the global head of Datsun.