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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:

Infiniti to get Leaf-based electric sedan after all

Infiniti suffered a huge blow a few weeks ago when CEO Johan de Nysschen jumped ship after two years on the job to take the helm at Cadillac. As boss, he spearheaded change within the Japanese luxury brand and was among the biggest champions of the Q50 Eau Rouge. However, the company is far from sunk. Plans put in place prior to de Nysschen leaving are still on the table, according to Nissan product planner Andy Palmer to Automotive News, and that could mean a rosy future for the once AWOL LE sedan (pictured above) and other models.
Back in 2012, Infiniti promised that it would have the LE on the market as a premium electric sedan by 2014. It was supposed to share the battery pack with the Nissan Leaf but with a more powerful, 134-horsepower motor. But have you seen one on the road recently? The luxury EV was eventually shelved, but de Nysschen pledged the idea wasn't dead. Maybe now is a better time for it. According to Automotive News, the LE is rescheduled to launch in 2017 or 2018. The latest version would use the Leaf platform but with a more potent, next-gen battery to give it a range over 90 miles.
Of course, the LE isn't the only thing on the way from Infiniti; it also appears to be planning a two-pronged approach for small cars. Palmer recently tweeted that the company would build the forthcoming Q30 hatchback and QX30 crossover in the UK in 2015. Additionally, the automaker is firing up a new joint venture factory in Mexico with Mercedes-Benz; building compact models there starting in 2017. According Automotive News, the Mexican-built models will be more US-focused while the UK-built ones will appeal more to Europeans.

Nissan looking to expand UK plant to build Infiniti Q30

With the Infiniti Q30 concept heading to the Frankfurt Motor Show next month and a future premium compact model heading into production at Nissan's Sunderland UK assembly plant, just connecting the dots tells us this new small Infiniti is headed for UK production. Backing this up, Reuters is reporting that Nissan is looking to expand the Sunderland plant by 25,000 square feet, while Automotive News Europe takes it a step further by almost confirming that the Q30 will be built alongside the Nissan Qashqai and Note.
The reports say that Sunderland is already the UK's biggest automotive plant, but the expansion will make it even larger with production capacity expected to rise from the current 500,000 units built each year to more than 550,000. There is no indication if the expansion will bring more jobs to the plant, which already employs around 6,000 people.