2013 Infiniti G37x Sedan Awd’ Black On Black’ Luxury Sport
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2023 Infiniti QX50 gets new Sport trim and more

The Infiniti QX50 is a perfectly fine SUV with attractive styling and great standard features. Perhaps its most significant fault is that its rivals exist, as the BMW X3, Audi Q5 and Cadillac XT5 all do the same things, just as well (better, in some cases), and for less money in higher trims. Even so, the QX50 is worth a look if you’re in the market, and the automaker just updated the SUV with a new trim level, better standard features and a new maintenance plan. Infiniti offers five QX50 trims for the 2023 model year: Pure, Luxe, Sport, Sensory and Autograph. The base Pure trim starts at $40,300, and pricing reaches $57,350 for the top trim. Buyers can opt for AWD in lower trims for a $2,000 upcharge, and the Autograph trim adds AWD as standard equipment. Infiniti Premium Care is standard for all QX50s sold in the United States, which includes oil changes, inspections and tire rotations for up to three years. The headline change for 2023 is the new Sport trim. It gets dark-painted 20-inch wheels, unique badging and gloss-black exterior trim. Inside, the Sport adds semi-aniline leather upholstery and a 12-speaker Bose audio system. Those upgrades build on the Luxe trim, which starts at $43,600 and brings most of the goodies the base Pure trim forgets. That means standard wireless charging, remote start and rear passenger alerts. All QX50s get a decent suite of advanced driver aids, including forward automatic emergency braking, pedestrian detection, rear automatic braking, blind spot monitoring, lane departure warnings and automatic high beams. The 2023 QX50 is too new to have received complete crash test results, but its predecessor scored “Good” in crash tests and “Superior” for front crash prevention systems. Related video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.

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 QX70 drops V8 for 2015, holds line on pricing

QX70 was the only application for the 5.0L, making it a tough sell in the boardroom.
It was always easy to chuckle a bit at Infiniti's branding of its FX crossover as a "bionic cheetah" - until you drove the thing. It was something of a revelation when it came on the market in late 2002 - certainly visually, but also in terms of performance, particularly in V8 guise. The Porsche Cayenne burst on the scene at the same time, and between the two of them, they vividly illustrated that the idea of a performance utility vehicle wasn't the oxymoron it first appeared to be.