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2016 Nissan Altima gets SR model, 39 mpg, 3 press releases [w/video]

UPDATE: After taking exception with Seyth's reaction to press-release overdose, a Nissan spokesperson commented,"It gets 39 mpg. That's ******* epic." The Mazda 6, rated 40 mpg highway, is the only car among the Altima's peers to do equal or better. (See a full list of gas-powered non-hybrid cars that do 39 mpg highway or better here.) It seems that Nissan just can't stop selling its hot Altima midsizer. At least, that's what the bullet points of the press release for the new, 2016 version of the car tell me. The model has seen five consecutive years of sales growth, occasionally hitting the 30,000-per-month figures that heavies like Camry, Accord, and Fusion regularly nab. And, as we all know, a key to keeping midsize sedans fresh is the mid-cycle refresh. Here we have it. Nissan has reshaped the front and rear of the Altima to better match the look of its handsome new Maxima. That means a deep-v wrought in chrome on the front fascia, new (optional) LED headlights that look like reverse check marks, and a lower bumper that mirrors the shape above it. There are new taillights, bumper, and trunk lid for the rear of the car, too. You'll likely have to stare at the pictures pictures of the posteriors on the old and new cars for a few minutes (as we did) to pick them out, but they're there. The press release says so. Changes to the interior are subtle. We spotted a new center stack, and new cup holders next to the gearlever. Your weird friend Brian who hosts the Altima Altimatics fan forum could probably lend more detail here, but the non-enthusiast eye sees a mild rethinking of a nice interior. The excellent Zero Gravity front seats are still standard on all trims, which is probably half the reason Nissan is selling so many of these things. (How did that not make the bullet points, guys?) Change is more evident in the new-for-'16 Altima SR trim. The lighting profile is different for the model's most athletic variant, with smoked lenses, daytime running lights and revised fog lamps. More importantly, the SR gets its own suspension setup, revised dampers, stiffer front and rear stabilizers, and a more aggressive wheel/tire package. Nissan also offers drivers the ability to paddle-shift the SR's CVT transmission. The SR grade can be had with either Altima engine option. As for the motivating forces behind Altima's new nose, well, they're mostly the same.

Nissan Xterra's fate hangs in the balance

The Nissan Xterra might not be long for this world, according to a report from Edmunds. The rugged SUV, which has always been a bit more of a hardcore, purpose-built vehicle than the rest of the Nissan SUV range. But it has also suffered from slowing sales, low fuel economy relative to the competition and general neglect, as Nissan has focused on other offerings in its range.
"There are plans to replace it, there are always plans, (but) I am not sure it will happen. I would say in the next six months to a year," Pierre Loing, vice president of product planning for Nissan Americas told Edmunds. Part of the problem, he added, was that the Xterra is a US-only vehicle, which makes it a hard sell in a world where automakers are increasingly depending on global cars.
Besides the economic forces working against the Xterra, it's just a vehicle that hasn't been a huge sales success of late. Customers are more conscious of fuel economy and a body-on-frame SUV that only nets 16 miles per gallon just isn't good enough; arguably why Nissan barely sold 17,000 units last year. We can hold out hope, as the Xterra remains a fun off-roader that we'd hate to see go, but unless Nissan finds a business case or some global partners, this is a vehicle that is on its last leg.

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.