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Nissan's new GT-R boss says next car will go for more volume

Since its introduction in 2008, the Nissan GT-R has seen a steady increase of power and price almost every year, but the big news for the next-gen supercar might be an increase in production. Automotive News recently spoke with newly appointed GT-R chief engineer Kinishi Tanuma who said Nissan needs "more of a volume car." Nissan has sold a little more than 2,000 GT-Rs in the US since 2012 - 1,188 last year and 952 so far this year.
Of course, a key limiting factor in the GT-R's production is its hand-built engine. Currently, only four people are qualified to build the GT-R's twin-turbo V6, but Tanuma says a fifth is in training. Even if production numbers are raised, Nissan also wants to add more quality and value into the GT-R. There is still no word as to what kind of timeframe Nissan is looking to start pumping out more GT-Rs, but with a new Nismo model rumored to be bringing a two-second 0-60 time, demand is sure to be on the rise.

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 giving away Leaf-shaped air fresheners that smell like the future

We had to check our calendar to make sure it didn't read April 1, but since it's not April Fool's Day, we have to assume that Nissan of Europe really has created a special air freshener scent to give away this Christmas. To create this original fragrance, Nissan looked to Dr. George Dodd, a master perfumer and aroma academy scientist who looks a tiny bit like Santa Claus (we seriously aren't making this stuff up).
Like a mad scientist, Dr. Dodd went to work blending chemicals and fragrances to design a smell that matches the Leaf's Earth-friendly, zero-emission attitude. Once the "scent of the future" is transformed into the lovely Santa-driving, Leaf-shaped air freshener you see above, Nissan of Europe will be giving one to its employees, Leaf customers and "select electric car fans." Sadly, EV - and scent - enthusiasts here in the US will be stuck with the tried-and-true pine tree air freshener.
We don't want to ruin exactly what Dodd finally came up with for the "scent of the future," but you can find out for yourselves in the video and press release posted below.