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Nissan Leaf keeps plug-in vehicle sales crown for 6th straight month

And Nissan makes it 14 in a row. For the 14th straight month, the all-electric Leaf has had "record sales," according to Nissan's marketing team. What that means is that for that particular month (in this case, April) no matter what year you look at, the car sold more than it ever did before. For April 2014, the 2,088 Leafs sold represents a 7.8-percent increase from 2013. Nissan's director of EV sales and marketing, Toby Perry, said in a statement that the "new market" of Cincinnati made the top 25 list for Leaf sales areas in April, so the car's popularity continues to ebb and flow across the US. Over at Chevy, the Volt sold 1,548 units in April, reaching a year-to-date total of 5,154. The Leaf is outpacing that with 7,272 YTD sales. In 2013, the Volt outsold the Leaf by about 500 vehicles, but Leaf sales are up 33 percent year-over-year while Volt is down 7.1 percent. The Leaf has also outsold the Volt for six straight months. But we're excited for every eco-car sale, and that's why we'll have our monthly detailed write-up of the rest of the plug-ins, hybrids and diesel vehicles available soon. Until then, discuss. Green Chevrolet Nissan Electric Hybrid PHEV ev sales

China's largest dealer body pushes back against foreign automakers over huge inventories

Do not think for a second that automakers forcing inventory on dealers in order to pad the numbers is a ruse known only in the US. Stories of individual brands have hinted at the trouble Chinese dealerships are having trying to move units as the country's economic growth remains hot but comes off the boil, like the one revealing that 95 percent of Toyota-FAW showrooms are losing money. Yet Toyota isn't the only culprit, and the issue has become so dire that the China Automobile Dealers Association (CADA), the largest dealer body in the country, has written to the government to complain. Chinese car sales are expected to close out the year with an annualized growth of six-percent, down from last year's 14 percent when targets were set, while in the background the pace of overall economic expansion is the slowest its been since the early nineties. Automakers, shipping cars on schedule to make their earlier targets, have blown up inventories such that they are an average of 1.8 times monthly sales, when the preferred multiplier is from 0.9 to 1.2. According to the CADA, the price wars and necessary incentives mean that only 30 percent of dealers are operating in the black. That number is down a whopping forty percent since 2010. In response, Toyota has already said it will not make its 2014 target of 1.1 million cars sold. We're a long way from 2012, when Toyota planned on selling 1.8 million cars in China in 2015, a target that's now as realistic as a manticore. BMW, Honda and Nissan have erased numbers on their spreadsheets, too; BMW growth dropped from 20 percent to 8 percent midyear after it began "reducing wholesale supplies," and Honda has been reworking its plans as sales have decreased each of the past six months. It's a big deal for Chinese dealers to begin protesting publicly, the CADA saying, "In the past, dealers were angry, but dared not speak out. But now, they have to shout because the situation is getting so unbearable." With six-percent growth forecast for next year and dealers unwilling to remain underwater, The Year of the Sheep coming in 2015 could portend meaning beyond the zodiac. News Source: ReutersImage Credit: AP Photo/Andy Wong BMW Honda Nissan Toyota Car Buying Car Dealers

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.