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Nissan New Micra headed for Canadian showroom after Montreal reveal?

Fresh off news that Mitsubishi is bringing a sedan version of its Mirage, called the G4, to this month's Montreal Auto Show, we now believe that another small car will be debuting for our small-car-loving friends to the north. Word is that Nissan will be bringing its compact New Micra to the Canadian show, as well. Slotting in just below the Versa Note hatchback in terms of both size and price, the Montreal debut should be followed up with an on-sale date in short order.
We've been hearing rumors that the New Micra would end up in Canadian dealerships for some time. At every turn, however, we've also heard that the Franco-Japanese hatch is not intended for sale in the US, and nothing in this latest report from Autos.ca would seem to indicate otherwise. As Autoblog sources are quick to point out, Nissan already has one of the least-expensive offerings in the US, the $11,990 Versa Sedan, and the Japanese automaker just doesn't see room underneath it for another model. Sorry, Yank.

Nissan's NY taxi deal faces court obstacles

Nissan scored a big win for itself when the NV200 was named New York City's Taxi of Tomorrow, but the compact van has been under attack ever since. The latest setback for Nissan comes from the New York Supreme Court, which has reportedly ruled the deal between NYC and Nissan is "null, void and unenforceable" since the NV200 is not a hybrid - one of the key parts of NYC Mayor Michael Bloomberg Taxi of Tomorrow plan.
The NV200 Taxi launches this October. Although Nissan says it is bringing a hybrid version of the van to market in 2015, the New York Supreme Court ruled against Nissan, which opens the door for taxi companies in NYC to drive non-Nissan hybrid vehicles. Despite this setback, it doesn't sound like this ruling will affect the NV200 becoming the official taxi of NYC as a part of the 10-year contract worth an estimated $1 billion.

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.