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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

This tiny 1.5L engine from Nissan makes 400 horsepower

Back in 2012, Ford packed its tiny 1.0-liter EcoBoost three-cylinder in a carry-on suitcase, destined for use in the Fiesta here in the US. In June, Nissan will pack its tiny new three-cylinder engine in a 24 Hours of Le Mans racecar. Nissan's don't-call-me-DeltaWing ZEOD RC racecar will still be able to tackle a single lap under full electric power, but the rest of the time it will be powered by the new 1.5-liter turbocharged three-cylinder engine.
Holding the lightweight engine (at right) is Nismo president Shoichi Miyatani, and he's likely smiling because that 40-kilogram (88-pound) engine packs quite a punch with 400 horsepower and 280 pound-feet of torque. Nissan would like to take a moment to point out this engine's power-to-weight is better than the engines currently used in Formula One racecars. Scroll down for more information on this new race engine, which we'll see in action at Le Mans in June.

As of today, Nissan has sold 50,000 Leafs in the US, 115,000 globally

Watch out, America, there are 50,000 Nissan Leaf electric vehicles prowling your streets. That's the official word from Nissan, which says it has just delivered the 50,000th Leaf – a black SL model – to Todd and Lisa Bolt in Dallas, Texas. Todd is a pastor at the Gateway Church in Southlake, where there almost two dozen Leaf drivers who call themselves the "Blessed LEAFs Club." We're not making that up. Divinely inspired or not, Todd said in a statement that the EV completely meets the family's needs and that, "I don't know why we'd buy another gas car." Last September, Nissan announced it had sold 35,000 Leaf EVs in the US so far, and the 25,000 mark came in May last year. Globally, "nearly 115,000" Leafs have been sold, which makes Nissan's workhorse the most popular EV by a long shot. To celebrate the occasion, Nissan has put together an infographic (click to enlarge) showing the cumulative effects of all those electric vehicles on the roads. While they're only estimates based on taking the actual data from the CarWings connected vehicles (which make up 55 percent of the total fleet) and extrapolating, the numbers are still impressive. Around 906,000,000 miles driven, which means 241,000 metric tons of CO2 saved from going into the air. 50,000 Leaf sales is a big deal, sure, but we're much more keen on those cleaner air figures. Read more below. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. NISSAN DELIVERS 50,000TH ALL-ELECTRIC LEAF IN U.S. TO TEXAS FAMILY DALLAS (May 23, 2014) -- Nissan, the global leader in electric vehicle (EV) sales, achieved another milestone this month as Dallas residents Todd and Lisa Bolt made Nissan LEAF the first all-electric model to hit 50,000 sales in the U.S. The Bolt family took delivery of their black LEAF SL earlier this month at AutoNation Nissan of Lewisville. Thanks to enthusiastic owner advocates, robust public charging infrastructure and the launch of a successful free charging promotion, Dallas – and the state of Texas – have become hot growth markets for LEAF. So far in 2014, LEAF sales in the Dallas-Fort Worth metroplex have grown by about 50 percent over the previous year, with that growth set to accelerate faster thanks in part to the introduction of a new state tax rebate of up to $2,500 on the purchase or lease of a new Nissan LEAF.