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2016 Infiniti Q50 Eau Rouge Prototype [w/video]

It only takes about half a lap of the Millbrook Proving Grounds for me to become convinced that Infiniti must build this car.
The sedan I am piloting around the English circuit is a working prototype of the Q50 Eau Rouge Concept that made its world debut at the 2014 Detroit Auto Show earlier this year. As a refresher, the exquisitely painted, burgundy metallic, four-door show car is based on the production Q50, enhanced with Infiniti Red Bull Racing-inspired carbon-fiber bodywork, aerodynamic upgrades and - as we would come to learn at the Geneva Motor Show a few months later - fitted with a beastly twin-turbocharged engine shared with the parent company's spectacular Nissan GT-R.
Despite lacking the concept's gorgeously expensive paint, the vinyl-wrapped red prototype seen here is much more appealing than the static concept, as it is mechanically complete - it can be driven - thus explaining why I have traveled one-third of the way around the world to test this enthusiast-tuned, one-of-a-kind machine at one of Europe's premier testing facilities.

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:

2021 Infiniti QX50 adds new features and a blacked-out appearance package

The 2021 Infiniti QX50 is out, and Infiniti has made a couple changes of note. Most of them are equipment related, but the luxury crossover’s price is going up this year, too. A base QX50 Pure is $700 more expensive this for 2021, with the new total being $38,975. That gets you the front-wheel-drive model. If you want all-wheel drive, thatÂ’ll be another $2,000. For your extra coin, Infiniti has added a Wi-Fi hotspot, acoustic laminated front side glass, rear seat-mounted side-impact airbags and a new automatic emergency call system for when the vehicle is involved in a collision. All those features are standard across every QX50. More features are also added to the $42,525 Luxe trim as standard equipment. You now get heated front seats and ProPilot Assist. ThereÂ’s also a new $1,200 Appearance Package that is exclusively available on this trim. It adds 20-inch black-painted wheels, black mirror caps, black mesh grille, dark chrome exterior accents and a graphite headliner. Photos of this package can be seen in the monochromatic montage below. The price increases can be seen across the whole line. Even the Autograph (top trim) is up by $350 this year to $55,225. Tiny equipment bumps come along with these price increases. For example, the Essential trim adds the head-up display for no cost, and the Autograph trim adds InfinitiÂ’s Direct Adaptive Steering system. The 2021 QX50 is in dealers and on sale now. Related Video: