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Nissan's Dacia Duster-based Terrano revealed

The new Nissan Terrano has appeared in production form after an apparent August 20 launch in India, but the small sport utility vehicle remains sadly aloof from the US market. We've had our eyes on the Terrano ever since we learned it would be produced as an upscale alternative to the Dacia Duster on which it's based, but currently Nissan has no plans to import it here. Blame safety and perhaps emissions laws - the Duster was never designed for our market.
Even with these less-than-high resolution images, it's clear that the beyond the obvious badges, Nissan's signature trapezoidal grille and a slightly altered rear end with new taillights are the biggest visual clues that this is the Terrano, but those with astute eyes will also notice a slightly redesigned hood and blacked-out door pillars instead of the Duster's body-colored items. Either way, it looks to be a handsome, low-cost little brute - the sort of simple and rugged SUV that's hard to come by in today's marketplace.

Nissan adds 2013 Titan to gearshift recall

Nissan has added the 2013 Titan to the list of vehicles recalled over potential gearshift issues. Just a few days ago, the automaker recalled nearly 20,000 NV Vans for a problem with the shift lever assembly that could cause the gear selector to read inaccurately. Now Nissan is recalling certain 2013 Titan pickup trucks manufactured between December 17, 2012 and February 20, 2013 and equipped with column-mounted shift levers, though for a different fault. The pickups were built using certain chemicals that could cause the brake-shift interlock mechanism to fail over time. If that happens, the truck could be shifted out of Park without the driver's foot on the brake.
As a result, the truck could roll away and cause an accident or injury. Nissan says it will remedy the fault free of charge. Owners can expect to be notified once the campaign begins on or around April 8. You can read the full National Highway Traffic Safety Administration notice below for more information.

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.