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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:

2017 Infiniti QX30 brings style in a small package to LA

There are already no shortage of luxurious compact crossovers on the market, like the Lexus NX and Mercedes-Benz GLA-Class. Infiniti clearly sees room for growth with the debut of the production QX30 at the Los Angeles Auto Show. The highly sculpted CUV arrives next year to offer another stylish entry in the segment. The production QX30 clearly adapts the swoopy concept's design from the Geneva Motor Show, but the designers soften things slightly. The kinked C-pillar comes straight from the earlier shape, and the arching character line now runs through both door handles along the side. Narrow lights at the front and rear also give the CUV a sporty look. Inside, leather and metallic trim abound, and the infotainment system sits high on the center stack. The QX30 will be available with diesel and gasoline engines, depending on the market, but the 2.0t on the fender here suggests this one uses the turbocharged unit from its Q30 hatchback sibling with 208 horsepower and 258 pound-feet of torque. A seven-speed dual clutch gearbox is standard on the CUV, and an all-wheel-drive system can send up to 50-percent of the power to the rear wheels as necessary. Infiniti hopes young buyers gravitate toward the model's bold shape when the QX30 goes on sale. LA seems like the perfect place to catch the eye of these potential customers. Infiniti QX30: A premium active crossover for all purposes • QX30 debuts as a new premium offering for global markets • Combines crossover appearance with signature Infiniti design cues • Delivers a confident drive and versatile attitude, aided by intelligent all-wheel drive • Intuitive technologies enhance safety, comfort and convenience • Part of first Infiniti production in Europe, at new facilities in Sunderland, UK • Simultaneous world premieres at Los Angeles and Guangzhou motor shows HONG KONG – The Infiniti QX30 premium active crossover is making its simultaneous global debut at the 2015 Los Angeles and Guangzhou international motor shows – signalling the next phase of the company's global growth strategy. Created for a new generation of premium buyers who appreciate category-defying design inside and out, the QX30 boasts a purposeful appearance that makes a bold visual statement as part of Infiniti's premium model line-up.

Formula One speeds towards radical thousand-horsepower shakeup

The teams, the drivers, the fans, the circuits... few, if any, were satisfied with how Formula One has shaped up since the current regulations took hold last year. But that doesn't mean they aren't working on it. At a recent meeting of the F1 Strategy Group, the leading parties in the sport outlined a new framework that would radically shake up the cars themselves while keeping costs in check. And the biggest change could see the engines producing around 1,000 horsepower. Although a proposal put forth by Ferrari to ditch the current V6 hybrid engines in favor of new twin-turbocharged units was rejected by Honda and Mercedes, the members of the group approved in principal to increase the fuel flow in the existing engines to dramatically boost output. As it stands, the current 1.6-liter turbocharged V6 engines develop around 600 horsepower, with an additional 160 or so kicked in by the electric Energy Recovery System, for a combined output of about 760 hp. What's not clear at the moment is whether the increased fuel flow would necessitate either the return of mid-race refueling (currently banned) or the installation of larger fuel tanks. Red Bull and McLaren also submitted proposals to radically redesign the shape of the cars as well, however a more evolutionary approach was adopted instead. Though far from finalized, the new design would keep the same basic form of the current chassis, but with adjustments to make them more aesthetically pleasing while producing more downforce. Wider tires are also said to be part of the mix. With more power and more grip from the tires and aero, the resulting cars would most certainly end up going much faster than the current ones, which are already starting to nudge the lap records at some of the circuits, many of which were set during the V10 era. The F1 Strategy Group is made up of representatives of the FIA, Formula One Management and six leading teams. The next step will be for the teams' technical directors to iron out how to implement what their bosses have agreed to. If they settle the details fast enough, the revised regulations could be pushed through in time for next season. News Source: AutosportImage Credit: Mark Thompson/Getty Motorsports Ferrari Honda Infiniti McLaren Mercedes-Benz F1