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Nissan Skyline Nismo gets a more powerful Z engine

Recent rumors claim the Nissan Skyline will morph into an electric crossover in the coming years. Regardless of whether or not they're true, the company isn't done with the current, gasoline-powered Skyline yet and it launched a limited-edition, Nismo-branded model in Japan. If you're experiencing deja vu, it's likely because the Nissan Skyline is sold as the Infiniti Q50 in the United States. We even get a range-topping, performance-oriented trim level, the 400-horsepower Red Sport 400. The Skyline Nismo goes further, though, by adopting an evolution of the twin-turbocharged, 3.0-liter V6 that powers the Red Sport 400 and the Z coupe. It's rated at 414 horsepower and 404 pound-feet of torque. For context, the Q50 and Z pack 400-horsepower and just 350 pound-feet of torque. The Nismo's engine spins just the rear wheels via a seven-speed automatic transmission, whereas America's Red Sport 400 is available with all-wheel drive. Nissan didn't settle for adding a few horses to the cavalry, slapping a couple of "Nismo" emblems to the body, and calling it a job well done. Its engineers redesigned the Skyline's suspension system, installed fade-resistant brake pads and recalibrated the various vehicle control systems, including the ABS, to deliver a sportier driving experience on and off the track. The brand even went as far as securing the windshield and the rear window with a type of adhesive normally reserved for the GT-R Nismo to improve rigidity without adding weight.  Visual updates are part of the Nismo package as well, including 19-inch Enkei wheels wrapped by tires that are wider than the ones worn by the regular-production model, an old-school "GT" emblem on each fender, and a body kit that includes a front splitter and side skirts. These updates aren't just for show: Nissan notes the redesigned grille opening helps channel additional cooling air to the radiator and the oil cooler. The Nismo treatment also permeates the cabin. The front passengers sit on Recaro sport seats with red inserts, while the driver faces a steering wheel with a red 12-o'clock mark as well as a new-look tachometer with a red ring and a small "Nismo" logo below the needle. Enthusiasts who want an even rarer version of the current-generation Skyline can try their luck at scoring the Nismo Limited.

2022 Infiniti QX50 starts at $40,025

Infiniti upped prices on the 2022 QX50, but at least some of the MSRP increase goes toward new features. Nissan's luxury arm made ProPilot Assist standard for all five trims, the driver assistance suite includes tech like steering assist, intelligent cruise control, speed limit assist, and distance control assist. Apple CarPlay is another included item for next year's model, as well as an auto-dimming rearview mirror, and more soft-touch luxuries for the rear quarters with keyless entry able to be activated by the rear doors now, LED welcome lights in the rear door handles, and a USB-C port for the aft chairs. The first four grades are front-drivers; adding all-wheel drive adds $2,000 to the tab. For 2022, top front-wheel drive Autograph bows out, making AWD the de facto standard. The trims and their pricing after the $1,025 destination fee, plus their differences from the 2021 model, are: Pure: $40,025 ($950) Luxe: $43,375 ($750) Essential: $47,825 ($2,000) Sensory: $52,525 ($1,400) Autograph AWD $57,975 (no change) On top of the other newly standard equipment, the Essential trim picks up a heated steering wheel, 16-speaker Bose Performance Series audio, climate-controlled front seats,  Luxe fits "leather-appointed seats," and offers an updated Appearance Package for $1,200. The bundle is composed of black mirror caps, body color rear diffuser, black mesh grille, black fender accents, a black liftgate finisher, and 20-inch black-painted, machine-finished wheels. A graphite headliner finishes the package inside.   Sensory snares some features formerly reserved for the Autobiography, like "leather-appointed" perforated seats, four-way passenger power-seat lumbar adjustment, heated outboard seats in the second row, ultrasuede interior trim, and a motion-activated liftgate.  The eight-strong color palette welcomes a new Slate Gray hue. Mechanicals don't change, every model powered by a 2.0-liter inline-four cylinder with 268 horsepower and 280 pound-feet of torque, routing its output through a continuously-variable transmission. The 2022 Infiniti QX50 should reach dealers later this month.

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.