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Nissan Altima takes first V8 Supercars win

The V8 Supercars championship used to be strictly a contest between Holden and Ford. But just as BMW crashed the Audi and Mercedes party in DTM, so has Nissan (and for that matter, Mercedes) pushed past the door into Australia's popular touring car series. And like BMW, Nissan hasn't waited long before notching its first victory.
Nissan claimed the checkered flag this weekend in the first of three races at Winton, the ninth stop on the calendar. And what a spectacular win it was: not only did Nissan take the checkered flag, they finished one-two. James Moffat drove his Altima to the finish line just ahead of teammate Michael Caruso. It was Caruso who lead the first half of the race after qualifying just behind defending champion (and current points leader) Jamie Whincup, who suffered a gearbox malfunction and retired on only the ninth lap.
Of course that's just one race out of 27 so far and 37 scheduled this season, so that won't be elevating Nissan or any of its drivers to the lead the same way that BMW did upon its return last season to DTM, but it's a good start and a cause to celebrate for Nissan. Mark Winterbottom (Ford) and James Courtney (Holden) won the following two rounds at Winton as Jamie Whincup (Holden) leads Will Davison (Ford) in the standings.

Nissan Leaf all-electric taxis start pilot program in NYC [w/video]

When New York City picked the Nissan NV200 as its Taxi of Tomorrow, many were surprised that the vehicle wasn't electric, or even a hybrid for that matter. With NYC Mayor Michael Bloomberg on hand, Nissan celebrated Earth Day on Monday by unveiling a pilot program of electric taxis for the city consisting of six 2013 Nissan Leaf EVs, which the mayor referred to as the "taxi of the day after tomorrow."
This pilot program is aimed to show how EVs can operate as taxi cabs, and Mayor Bloomberg said that New York City hopes to have a third of its taxi fleet electrified by 2020. In addition to the six cars, Nissan has also provided three quick chargers around Manhattan, allowing the Leafs to get an 80-percent recharge in just 30 minutes.
According to David Yassky, commissioner of the NYC Taxi and Limousine Commission, "What we have to do now is figure out how you integrate the charging of an electric vehicle into the duty of a taxi cab."

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.