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A look inside Infiniti's variable-compression engine

We're sympathetic to anyone who had trouble understanding what's going on with Infiniti's new variable-compression engine. While we got a full tech briefing on the novel VC-Turbo back in August, the visual aids were lacking. The cutaway engine Infiniti brought to the Paris show fixes all of that. You can thank the little green and pink lines on the cutaway for making the whole idea a little more clear. Click through the gallery to see two lines – one green and one pink – that represent the different strokes allowing for different compression ratios. Remember, the compression ratio is the amount of volume in the cylinder on intake compared to the amount at the end of the compression stroke. Leave more room at the end and you lower that ratio. The length of the stroke doesn't change with this system, but where it sits along the cylinder does. Hence those two lines. The variable compression ratio allows this new turbocharged engine to maximize fuel economy when the turbo isn't needed by raising the compression ratio. It will see its first use in the next Infiniti QX50 crossover, previewed by the QX Sport Inspiration concept that's also on display in Paris, and has performance targets of 268 horsepower and 288 pound-feet of torque. After, it will migrate to other Infiniti and Nissan vehicles, with transverse front-drive-based applications first in line. Eventually, it's likely to completely replace Nissan's corporate 3.5-liter V6. We'll be poking around the engine a little more in Paris today to try and get some more info. For now, enjoy those cutaway images and those friendly little lines. Featured Gallery Infiniti VC-Turbo engine cutaway View 14 Photos Paris Motor Show Infiniti Nissan Technology Emerging Technologies engine 2016 paris motor show

Infiniti EV coming in 2021

Infiniti announced that it will offer new electrified vehicles starting in 2021. Nissan CEO Hiroto Saikawa said that its luxury brand will build its first all-electric car in 2021, as well as new "e-Power" vehicles – series hybrids with batteries charged by gasoline generators. Nissan has introduced e-Power vehicles in other markets, including the Note e-Power and the Serena e-Power minivan. Now it will extend that technology to Infiniti, providing a similar driving experience to an EV with the convenience of a gas-powered vehicle. Infiniti also said that we can expect "beautiful vehicles" like the Q Inspiration Concept that debuted at the 2018 Detroit Auto Show. Infiniti doesn't plan on producing the Q Inspiration, but it will certainly influence future vehicles in terms of both styling and technology. The Q Inspiration uses variable compression technology, which the company intends to use to improve efficiency and performance of its gasoline-powered cars. Infiniti expects half of its global sales to be electric vehicles by 2025 (it's not clear whether the automaker is lumping series hybrids into the electric vehicle category). And while there's no way that Infiniti will release a production version of its all-electric Prototype 9 EV, seen above, we'll hold onto that dream anyway. Related Video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.

Assessing Sebastian Vettel's first 100 days as Infiniti's director of performance

Whenever a new US president is elected, we know to expect a performance review as soon as he (or she) has spent 100 days in office. Sebastian Vettel, arguably given a job that is more important to Infiniti than the US president, has been the brand's director of performance for one hundred revolutions of The Blue Marble, and Infiniti has put together a videographic glimpse of his work at Paul Ricard, in the US and England.
We probably won't really get a grip on the full results of his efforts for a while - we doubt that he's been in his post long enough to significantly alter the trajectory of the Q50 sedan, for instance. But then again, Infiniti insists he's been integral to the car's dynamics development regime, suggesting he's been working as a test driver for some time before these 100 days. Of course, Vettel is a race car driver and brand ambassador first and foremost, but when he tells a Q50 engineer that "For the future, I think it's more comfortable to have the shift paddles on the steering wheel," we get the sense that he won't hesitate to suggest changes in forthcoming products. Check out more of his inputs in the video below as well as a press release detailing his visit to the tech center in Cranfield, UK.