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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:

Chrysler, Nissan looking into claim that their cars are industry's most hackable

A pair of cyber security experts have awarded the ignominious title of most hackable vehicles on American roads to the 2014 Jeep Cherokee, 2014 Infiniti Q50 and 2015 Cadillac Escalade.
Charlie Miller and Chris Valasek are set to release a report at the Black Hat hacking conference in Las Vegas, Automotive News reports. The two men found the Jeep, Caddy and Q50 were easiest to hack based not on actual tests with the vehicles, but a detailed analysis of systems like Bluetooth and wireless internet access - basically, anything that'd allow a hacker to remotely gain access to the vehicle's systems.
Considering this lack of hands-on testing, the pair acknowledge that "most hackable" could be a relative term - they point out that the vehicles may actually be quite secure.

Infiniti QX30 Concept is... a mountain lion that stings?

According to Alfonso Albaisa, Executive Design Director at Infiniti, "The Q30 Concept was like a panther, lithe and slender. We transformed the QX30 Concept into a mountain lion, strong and muscular." He added, "With its higher stance and edgier design to match its tough capabilities, you can almost visualize how the QX30 Concept floats like a butterfly and stings like a bee." We're not quite sure that it looks like a mountain lion or whether it buzzes and stings, but it's definitely more aggressive than the Q30 Concept that it shares a good deal of underlying structure with, and that seems appropriate. We also think it stands apart as different than the cars it will compete against, like the Audi Q3, BMW X1, Mercedes-Benz GLA, Lexus NX and Buick Encore, which is a good thing, considering that those models have a solid head-start in the burgeoning premium compact crossover segment in which the QX30 will play. Power in this conceptual crossover comes from a 2.0-liter, turbocharged four-cylinder, and a seven-speed automatic transmission sends power to all four wheels, but Infiniti is quick to say that the QX30 will boast "a wide range of powertrains," so perhaps a hybrid or diesel could join the fray in some markets. We'll have to wait and see, but Infiniti says the QX30 is "earmarked for production" in 2016. Feel free to read more in the press release below, but not before scrolling through our high-res gallery of live images from Geneva, above. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. Stylish and Capable: Infiniti QX30 Concept debuts in Geneva – Infiniti's precursor to a premium compact crossover – Sharp design, rugged looks and command sitting make QX30 Concept the ideal urban explorer – Hints at a full range of powertrains to suit every need Hong Kong/Geneva – Infiniti has revealed the stylish and highly capable QX30 Concept, the design vision that will inspire a new premium compact crossover. Making its debut at the 2015 Geneva International Motor Show, the QX30 Concept cements Infiniti's ambitions to expand into the global premium compact segment, which is forecast for significant growth with the entry of younger affluent customers. Combining the sleek lines of the coupe with the command sitting and all-wheel drive of a crossover, the QX30 Concept is just as adept at navigating high street as it is exploring weekend getaways.