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2014 Nissan Versa Note pushes the little hatchback forward

Alright, truth time: The Nissan Versa isn't exactly our favorite car in the subcompact class. It's certainly competent, reliable transportation, but it's hardly an emotional purchase choice. Perhaps this new version of the Versa, then, can change our minds a bit. Meet the Versa Note - the cuter, five-door version of the li'l sedan, making its debut here at the 2013 Detroit Auto Show.
Aesthetically, the Versa Note is a pretty pleasant-looking thing; we've seen it before in JDM-spec. It's a decidedly aerodynamic thing, too, with a drag coefficient of just 0.29. And because of that - as well as an efficient little powertrain - the Note will achieve up to 40 miles per gallon on the highway.
Under the hood is Nissan's 1.6-liter inline four-cylinder engine churning out a furious 109 horsepower and 107 pound-feet of torque. Like, well, every other Nissan car, the Versa is equipped with a continuously variable transmission and will drive the front wheels exclusively. Base S models can be had with a five-speed manual transmission, but the moment you step up to a higher trim level, the do-it-yourself shifter goes away.

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.

Nissan hopes to inject some spice into Rogue with 'Open The Briefcase'

Nissan is in the midst of rolling out the redesigned 2014 Rogue and has launched an interesting social media game called Open The Briefcase. The video that launches this game depicts a simple ride-share gone very wrong, with a man getting embroiled in a high-speed chase in a bid to escape with a strange briefcase. Eventually, it all goes haywire, and the man and his driver are captured. The only question seems to be, what's in the briefcase?
The contest, which asks participants to select one of three briefcases by cracking a code, is set to reward three individuals with a new Rogue. New attempts can be made each day, and participants can get additional chances to open a briefcase by sharing the video. The contest kicked off on January 3 and will run until February 14. Hop over to the contest page on Facebook to take part, or just watch the video below and enjoy a bit of entertainment.