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2019 Infiniti Q50 Signature Edition brings its flourishes to New York Auto Show

The 2019 Infiniti Q50 Signature Edition is coming to the NY Auto Show as a limited edition version of the sport sedan. Infiniti hopes to draw folks in with a new front and rear fascia, differentiating it slightly from the rest of the Q50s out there. Every Signature Edition will come equipped with the 3.0-liter twin-turbo V6 under the hood that produces 300 horsepower. The bright 19-inch alloy wheels seen on this car are Signature Edition exclusives, according to Infiniti. Then you get your requisite Signature Edition badging on the trunk of this Q50. The inside gets some special touches with "Kacchu" aluminum trim and full leather sport seats. Infiniti makes a bunch of pay options standard equipment on the Signature Edition. These features include Infiniti's ProAssist bundle that includes niceties like blind-spot warning, rear cross traffic alert and backup collision intervention. You get heated seats, a heated steering wheel and navigation, as well. Infiniti is offering the Signature Edition with five different colors: Black Obsidian, Graphite Shadow, Liquid Platinum, Pure White and Iridium Blue. You're looking at the blue in the one photo Infiniti has provided pre-auto show. Infiniti hasn't given pricing or how many Signature Editions it will build, but you'll be able to buy one in May this year. Expect a low number to be available and a higher price for the "exclusivity."

Infiniti's variable compression engine in the 2019 QX50 is the first of its kind

The world's first variable compression ratio engine is here, in a production car. That car is the 2019 Infiniti QX50, debuting this week at the Los Angeles Auto Show. The midsize crossover has seen a refresh that has brought it an all-new platform together with new driver assist features, but it's the engine that's the centerpiece here. Nearly everything is continuously variable under the hood of the QX50 – not only the new shift-by-wire XTRONIC CVT. The new VC-Turbo gasoline engine is able to change its compression ratio from 8:1 to 14:1, or anything in between depending of the driving situation; whether there is need for top-end power or turbodiesel-like torque from low revs, or optimized fuel economy. The pistons' reach is continuously adjusted by an electric "Harmonic Drive" motor, which controls a multi-link system, affecting the top-dead-center of the pistons and changing the compression. The engine can also switch between efficiency-maximizing Atkinson cycle and regular combustion cycle, on the go – and there's both multipoint injection and gasoline direct injection employed. The result is 268 horsepower at 5,600 rpm and 280 pound-feet of torque at 4,400 rpm; good figures for a 2.0-liter four-cylinder gasoline engine with a single-scroll turbocharger. Infiniti says that the FWD version's fuel economy of 27 miles per gallon combined is 35-percent better than the previous-generation V6 engine; in AWD guise, it reaches 26 mpg, which is a 30-percent improvement. The new engine is pretty much all-aluminum, but the vaguely magical-sounding "transformative multi-link components" behind the variable compression system are made from high-carbon steel alloy. The engine's multi-link system also enables it to do away with any balancing shafts, and Infiniti compares its smoothness to a V6 rather than a regular four-cylinder. In addition to the aforementioned tech, the VC-Turbo engine has the world's first active engine mount vibration damping system to smoothen its operation even further. Related Video:

2014 Infiniti Q50's novel drive-by-wire steering system recalled

The gradual replacement of mechanical components in automobiles with electronic systems brings with it definite advantages, but also poses certain potential dangers. Just think of the inevitable problems you've encountered with the computer on which you're reading these words and you'll know what we mean. But a computer crashing isn't as problematic as your car going on the fritz when its electronic systems fail.
That's what Infiniti is being reminded of with its new drive-by-wire electronic steering system. The Japanese automaker developed and installed the Direct Adaptive Steering System in its new Q50 sedan, but a small number of those cars on the road are now being recalled due to that system.
According to the National Highway Traffic Safety Administration, on a small number of examples, the Q50's optional by-wire system may fail if the temperature in the engine compartment drops below freezing. There's a backup mechanical setup in place should the electronic system fail, but NHTSA says that the backup system may also fail to engage in time to avoid a crash.