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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.

Infiniti takes QX60 on vacation for National Lampoon-inspired ad

Infiniti is packing up its version of the Wagon Queen Family Truckster for a new ad inspired by the American comedy classic National Lampoon's Vacation. Well, actually the 30-second spot replaces the green station wagon with a QX60, but the commercial does a great job of evoking the movie in a short time. The release timing is clearly perfect too given the remake hitting theaters on July 29 with Ed Helms and Christina Applegate. Infiniti's ad replicates one of the film's memorable scenes, but it replaces Chevy Chase behind the wheel of the Family Truckster and Christie Brinkley in a Ferrari 308. Instead, we get Ethan Embry in a QX60 and a blonde in a Lamborghini Gallardo droptop. The slight twist at the end really makes the commercial work, though. The ad starts airing nationally on July 9, but you can watch it streaming above now. Beyond just the surface-level homage, Infiniti gives the spot a slightly deeper connection to the Vacation series. In 1997's Vegas Vacation, Embry played Rusty. INFINITI DEBUTS NEW QX60 "VACATION" AD CAMPAIGN Infiniti recreates famous scene from "National Lampoon's Vacation" in 30-second commercial with 2015 QX60 Luxury Crossover Commercial stars Christie Brinkley and Ethan Embry Campaign includes extensions in digital and social media NASHVILLE, Tenn. – Infiniti has released a new campaign for the 2015 QX60, inspired by the 1983 classic "National Lampoon's Vacation" which coincides with the July 29 release of Warner Bros. Studio's remake. The campaign begins with a TV commercial starring the original movie's car-loving blonde bombshell and supermodel, Christie Brinkley, and puts a spin on the famous movie scene as the modern day family heads to Walley World. In the national spot titled "Vacation," Ethan Embry (who notably starred as Rusty in "Vegas Vacation") loads his family in the roomy 3-row QX60 and hits the road for Walley World. While on the road trip, Ethan looks in his side view mirror and sees an attractive blonde in a sports car fast approaching. As Ethan and the blonde keep up with each other on the highway, Christie Brinkley is revealed as his wife who catches this action and ends the scene with an ironic response: "Honey, a blonde in a convertible? Seriously?" The popular Infiniti QX60 continues to stand out in the premium crossover segment, excelling in the areas that luxury crossover buyers desire most – interior versatility, roominess, available safety, and available advanced hospitality features.

2014 Infiniti QX60 Hybrid gives us d'ej`a vu

If we were totally lazy, we'd just copy and paste the text from our Nissan Pathfinder Hybrid post into this one. Why? Because the Infiniti JX35 QX60 Hybrid you see here is pretty much identical to its Nissan-badged sibling. At least, in terms of mechanicals.
But we aren't lazy... completely. Instead, let's have a quick recap. Engine: Supercharged 2.5-liter mill mated to a 15-kilowatt electric motor. Fuel economy: 26 miles per gallon combined. Interior changes: None - the battery does not compromise any sort of cargo or passenger volume. Price: Roughly $3,000 more than the standard QX60.
If you feel like the nitty-gritty details are necessary, have a look at the official press release below for all the goods. Otherwise, peruse the images in our high-res image gallery and tell us if you can spot the difference between the Q-by-60 and its Nissan twin.