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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:

First Infiniti QX30 Concept image released ahead of Geneva Motor Show

After releasing a shadowy glimpse of the rear of the QX30 Concept a few days ago, Infiniti is finally shining some light on the premium compact crossover's backside ahead of the vehicle's full debut at the 2015 Geneva Motor Show on March 3. The QX30 is a thorough reworking of the brand's Q30 Concept from the 2013 Frankfurt Motor Show. Many of the same styling elements show up on the latest luxury crossover interpretation, but the touches are tweaked to better align with Infiniti's latest look. In addition to jacking up the ride height by 1.2 inches, the CUV gets hard creases in its sheetmetal and complicated 21-inch aluminum wheels that really grab the eye. The rear wears a contrasting dark purple stripe that separates the hatch area from the exhaust tips housed in the skid plate, and both concepts share a coupe-like proportion with the backseat door pulls hidden for a cleaner line. While not pictured, the company says the vehicle has a glass roof. Infiniti still isn't showing the aluminum-trimmed front of the concept yet, but the automaker admits that the styling on display here hints at the possibility of a future premium compact crossover, which isn't really a surprise. The company has talked about a production QX30 several times in the past. First image release of strong and stylish Infiniti QX30 Concept • Concept combines elevated crossover stance with strong coupe contours • World premiere at 2015 Geneva International Motor Show • Enhanced crossover is 30mm taller than Q30 Concept HONG KONG – Infiniti today provides the first full glimpse of the QX30 Concept, which will have its world premiere at the 2015 Geneva International Motor Show. The crossover concept hints at a future premium compact vehicle and gives a strong indication of the brand's commitment to this segment. Pushing design boundaries, the QX30 Concept combines the sleek lines of a coupe with the distinguishing features and higher stance of a crossover. Looking poised for action, yet fluid, it promises to deliver effortless capability with style. "We wanted the spontaneous fluidity of the QX30 Concept design to cut through the urban clutter and rigidity, reflecting its go-anywhere and spur-of-the-moment nature," said Alfonso Albaisa, Infiniti Executive Design Director.

Infiniti-Red Bull Racing will seek a fourth title with the RB9 [w/video]

This is the car and the team that everyone wants to dethrone. The stability of this year's regulations means that the Infiniti Red Bull RB9 is a seriously honed RB8; however, that's a situation probably no other team would complain about seeing that the RB8 recovered from early stumbles and reliability issues last year to carry Sebastian Vettel to a third consecutive driver's title and the team to a third consecutive constructor's trophy.
The most noteworthy revisions to the car are the partial vanity panel that omits the driver cooling slot, the even narrower rear end - a feature of just about every car launched so far - and purple sidepods to showcase new title sponsor Infiniti. Adrian Newey, perhaps the most feared designer on the pit lane, said the nose and front wing could be changed relatively easily throughout the season, but he wanted to make sure to get the middle of the car - everything from the sidepods, back - as good as possible since they're more difficult to re-engineer. His track record leads us to believe he did just that.
Below are two videos, one of the making of the RB9, the other the launch at team headquarters in Milton Keynes.