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Nissan Leaf sells 1,553 in April, Volt climbs to 905

After three months in the 500 and 600 range, sales of the Chevy Volt climbed to 905 in April. That's up for the year so far – likely due to increasing discounts – but still down 41.5 percent from April 2014. As we've been saying every time the Volt turns in less-than-exciting monthly sales numbers, we suspect a large number of potential Volt buyers are waiting for the next-gen model to arrive in the second half of 2015. While the price for that car has not yet been announced, the updated tech specs show that it will probably be worth the wait for drivers who want the latest and greatest. Over on the Nissan Leaf side of things, April sales were 1,553 units this year. That's the second-best month of the year but down from the 2,088 units sold last April. After the Leaf finally climbed to the top of the cumulative best sellers list for plug-in vehicles last month, the difference between these two leaders is now 1,824 in favor of the Leaf. Nissan says that sales were influenced by the launch of its No Charge To Charge promotion in Indianapolis and Fresno, CA. This deal gives new Leaf buyers and lessees two years of no-cost quick charging in these markets. No Charge To Charge is not available in 15 US markets for (San Francisco, Sacramento, San Diego, Seattle, Portland, Nashville, Phoenix, Dallas-Ft. Worth, Houston, Washington, DC, Los Angeles, Chicago and Atlanta) and will expand to 10 more by the middle of this year. As we do every month, our full wrap-up of US green car sales is coming soon. For now, enjoy discussing these sales figures in the Comments below.

To survive in India, a diminished Nissan bets big on a small SUV

NEW DELHI — By any measure, Nissan has had a dreadful run in India. A push to revive its lower-end Datsun brand flopped, sales have slumped 60% over the past five years, and its sole plant in the country is operating way below capacity. But the amount of money and energy that Nissan — battered by scandal and expecting a record $4.5 billion annual operating loss worldwide — will spend to turn its fortunes around in India will hinge on the sales of one vehicle, its new Magnite compact SUV. The SUV may also determine how much heft Nissan will wield as it and alliance partner Renault thrash out their respective roles in the Indian market. Unveiled this month and due to be launched either late this year or early 2021, the Magnite will be Nissan's first new vehicle in India in two years. It's expected to have a 1.0-liter three-cylinder engine with 72 horsepower, and a turbocharged version of that engine making 100 horsepower. It will have features such as an 8-inch touchscreen, cruise control, and a 360-degree camera. Moreover, it will be just one of three Nissan-branded models in the market after two others were pulled in April when tougher emission rules kicked in. "Magnite will buy Nissan a couple of years to figure out a plan for India and the SUV's success will determine whether it invests more or scales down operations," said one source. A second source called the sport-utility vehicle Nissan's "last hope" to revive the brand in India. Japan's No. 2 automaker has, however, no plans to withdraw from India, where it has invested over $800 million, and discussions about strategy are ongoing, the sources said. They were not authorized to speak to media and declined to be identified. The Datsun brand is likely to be phased out as part of a global overhaul, they added. Nissan's only other models in India are three Datsun cars. Nissan said in a statement to Reuters it is committed to the Indian market and has a well-defined strategy for "a sustainable and profitable business". It declined to comment on sales goals for the Magnite.   Who will lead? Nissan's internal plans call for sales of 1,500 to 2,000 Magnites a month, the first source said — which if realized would exceed the average India monthly sales it achieved last business year with seven models. The SUV will be priced "aggressively," the sources said without elaborating.

Infiniti's new VC-T changes the rules of small turbocharged engines

The upcoming Infiniti QX50 crossover does not get our pulse racing, no matter how shapely the QX Sport Inspiration concept that previews it may be. No midsize SUV does, to be fair. But it has something special under the hood – the world's first production variable-compression-ratio engine. That means the QX50's 2.0-liter turbo four, which makes 268 horsepower and 288 pound-feet of torque, will have up to 27 percent better fuel economy. Here's how it works. The trend of moving to smaller, turbocharged engines carries with it one big falsehood. Under low load when the turbo isn't needed, these engines are less efficient than an equivalent engine without a turbo because of the low compression ratio the turbo requires. That is, if you never need the extra power, you're wasting fuel. Turbocharged (and supercharged) engines use a lower compression ratio to prevent detonation. When you force extra air in a cylinder and mix it with fuel, it's more likely to prematurely go boom. Lowering the compression ratio prevents this problem, but it's less efficient. Infiniti's VC-T promises the best of both worlds, with a compression ratio that ranges from 8.0:1 for high-power turbo needs to a 14.0:1 ratio for fuel-sipping efficiency. At its heart the VC-T engine is a simple idea, but it's complicated to explain. Consider yourself warned. The photo below from Infiniti serves as a good visual overview. For the truly nerdy, this patent application covers the mechanical concept. Instead of having the pistons connected to the crankshaft, Infiniti's engine has a pivot arm with a connection on each end. One end connects to the piston, the other connects to a second lower shaft, which is controlled by an actuator arm. At any given time the engine's pistons move up and down according to the lobes on the crankshaft. But the actuator arm can change the angle of the pivot arm up and down. That is, the pistons still move in the same motion with the same stroke, but phase the entire stroke up or down. Move the pivot up and there's less room at the top, which means a higher compression ratio. Move the pivot down and the compression ratio goes down, too. As an added bonus, the lower shaft eliminates the need for counter-rotating balance shafts. Infiniti says this system works constantly and can vary the compression ratio to any number between 8:1 and 14:1. It also uses electronic variable valve timing on the intake valves to switch into Atkinson-cycle combustion for greater efficiency.