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Nissan commits to adding 'iconic' design after Cube killed off

The Nissan Cube is on its way out here in the US and Canada. In a way, that's too bad, simply because the Cube's styling was nothing if not distinctive - much like the company's own Juke. However, the flame for uniquely styled models is indeed still burning over at Nissan.
We might never see an exact replacement for the Cube in the brand's lineup, but product planning boss Andy Palmer says that its retirement leaves a spot open in the Nissan lineup for something else. "To be clear, we will morph this space in our portfolio into something iconic," said Palmer to Automotive News. Unfortunately, he wouldn't hint at what that could mean.
However, his lack of suggestions makes it fun to speculate about what oddity could replace the Cube, especially since two of Nissan's more recent quirky concepts might have problems hitting the road. The Bladeglider is mired in Nissan and Deltawing Technologies' ongoing patent lawsuit. Alternatively, the retro-inspired IDx might be too expensive to build profitably. Still, this is the company that created both the (nearly dead) Murano CrossCabriolet and the very successful Juke; it can probably come up with something else delightfully weird.

How did Nissan tweet a response to the Royal Baby announcement so quickly?

A mere seven minutes after the Duke and Duchess of Cambridge announced they were pregnant with their second child, Nissan had the perfect post circulating on the Twittersphere. How did Nissan know to expect Kate and William were expecting? By paying attention to the Internet zeitgeist.
It could be triplets and there would *still* be enough room for the Queen... #XTrail #SevenSeats #RoyalBaby pic.twitter.com/k4HiNAb7lq

- NissanUK (@NissanUK) September 8, 2014

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.