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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.

Infiniti QX50 concept previews production model with variable compression engine

Infiniti revealed its QX50 concept ahead of its official debut at the Detroit Auto Show, and despite the concept title, it looks pretty much production-ready. The company calls the crossover "an evolution of the QX Sport Inspiration" concept, and that's certainly accurate. Side-by-side, the QX Sport, which we already figured was previewing a new QX50, and this concept look nearly identical. The primary changes are bumpers and side skirts that feature the obligatory aluminum trim to look like skid plates, and simple black plastic fender flares. The overall result is a crossover that is pleasant but not exactly exciting that bridges the gap between the small and swoopy QX30 and the large QX60. The plain wrapper hides plenty of impressive technology, though. Under the hood is Infiniti's fascinating variable-compression turbocharged engine. It's a 2.0-liter inline-four that can alter its compression ratio to anything between 8:1 and 14:1. The result is an engine that produces an estimated 268 horsepower and 288 lb-ft of torque. Infiniti says the four-cylinder should be about 27-percent more efficient than a comparable V6. In addition, while the company says this concept just shows a potential application of the engine, it's safe to say that you can expect it in the production model. With the new engine, the QX50 will also switch from to a front-drive platform, with all-wheel drive definitely an option or possibly standard; the current QX50 is based on the aging rear-drive FM platform used on other Infinitis and the Nissan 370Z. The other new tech buried in the QX50 concept's body is what Infiniti calls the "first production-ready incarnation" of its ProPilot semi-autonomous technology. The company doesn't go into great detail about what it will do except for handling stop-and-go highway traffic. We would hazard a guess that the system is functionally the same as the one introduced on the Nissan Serena minivan in Japan. It goes by the same name and can handle stop-and-go traffic, as well as maintain the car's lane position and distance behind other cars. It's another safe bet that we'll see this system in the production model. Other details about the car, such as the interior, have yet to be revealed. We're sure to see it as well as other information about the QX50's technology when it makes its full debut in Detroit. Related Video:

2022 Infiniti QX55 First Drive Review | A gorgeous value

Looking at the luxury crossover market, you can probably guess that there’s a clear demand for fastback variants. All the German automakers offer multiple coupe-like crossovers. The rest of the industry hasn't been so sure, including Infiniti, which didn't originally plan to offer a rakish version of its QX50. Yet here is the 2022 Infiniti QX55, and it's the direct result of customer demand. The people wanted it, so Infiniti brought it.   The company didnÂ’t just stop with the low, curvy roofline, though. The front fascia features a wavy, almost sculptural grille, a deeper chin spoiler and crisp black accents around the outboard grilles. The rear gets wider taillights with pronounced LED segments and a diffuser between the tailpipes. The license plate has been moved to the bumper, too, so that you get a big Infiniti badge and proud brand lettering across the hatch. On top of that, every QX55 gets big 20-inch wheels. These detail changes, plus the new roof make this not only a much more attractive-looking iteration of the QX50 but also arguably the best-looking crossover “coupe” in the segment. InfinitiÂ’s flowing design language naturally complements the QX55Â’s shape, and it looks almost like it was designed to be this way in the first place, whereas competitorÂ’s SUV coupes tend to look like afterthoughts. Mechanically, the QX55 is nearly identical to its boxier QX50 sibling. The only main distinctions are that the QX55 comes with all-wheel drive as standard, and the new body actually improved chassis rigidity by 10%. The engine is the same turbocharged, variable-compression 2.0-liter four-cylinder from the QX50 making the same 268 horsepower and 280 pound-feet of torque. Fuel economy is also identical at 22 mpg city, 28 mpg highway and 25 mpg combined. Power goes through a CVT, which again, is basically the same as the QX50Â’s. ItÂ’s not the smoothest engine in the segment, but itÂ’s a responsive and playful one, delivering great low-end torque. The CVT is smooth and reacts quickly to acceleration demands. It has a manual mode that works decently, too, but you never have full manual control. So you might as well let it do things automatically, which is no bad thing. As for the ride and handling, the QX55, even with its extra rigidity, feels just like the QX50. It has a soft, plush ride and an extremely quiet cabin befitting a luxury car. But when itÂ’s time to corner, itÂ’s deeply disappointing. ThereÂ’s lots of body roll and understeer.