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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

Autoblog Podcast #344

Doug DeMuro from Plays With Cars, Infiniti Q50, Subaru BRZ STI, Porsche Macan
Episode #344 of the Autoblog podcast is here, and this week, Dan Roth and Executive Editor Chris Paukert are joined by Doug DeMuro, author of Plays With Cars and prolific internet autowriting presence. Topics include the latest spy shots of the Porsche Macan, the 2014 Infiniti Q50, and the teaser images we've recently seen of a Subaru BRZ wearing STI badges. As always, we start with what's in the garage and finish up with some of your questions. For those of you who hung with us live on our UStream channel, thanks for taking the time. You can follow along after the jump with our Q&A. Thanks for listening!
Autoblog Podcast #344:

Infiniti will reinvent its models, tech and design language as part of reboot

Infiniti raised more than a few eyebrows when it announced plans to follow a strategy it described as Nissan-Plus. Although this term suggests the brand's image will be dangerously watered down, its chief executive stressed its flag will remain firmly planted in the luxury car segment as he outlined what to expect in the coming years. The executive team led by Infiniti boss Peyman Kargar will reboot the company with a focus on profitability. "Premium brands should bring more money to the company, so that's the objective. We are not at the level we want to be," he told Automotive News. Several new products are on their way, including a crossover with a fastback-like roofline named QX55, and Kargar clarified many future models will ride on an architecture shared with parent company Nissan. It will be compatible with gasoline-powered, hybrid and electric drivetrains. He explained sharing platforms and components is necessary to save money because the company, like its peers and rivals, is spending a small fortune on developing electrified, autonomous, and connected technology. The shift will likely spell the end of the driver-friendly rear-wheel drive platform found under the Q50 and the Q60, but don't expect Infiniti to put its emblem on, say, a Sentra, and call it a day. It will remain a luxury brand. "The objective is to use these assets of the company, and then to reinject the money we are saving into the luxury experience and ingredients of Infiniti. We will put more money into Infiniti's future, but this money will come from the savings in globalized platforms," Kargar explained. The strategy he's outlining is one many of the firm's competitors have already adopted. Lexus, Acura, and Audi all build cars using parts sourced from their respective parent company. Lamborghini's Urus is related to the Volkswagen Touareg under the sheetmetal. Kargar noted every upcoming new model will be defined by an overhauled design language. We don't know if recent concept cars (like the QX Inspiration introduced in Detroit in 2019; pictured) will influence its upcoming vehicles. However, its future cars will offer nicer interiors, more user-friendly infotainment systems, and they'll receive tech features before Nissan's variants get them, which, oddly, hasn't always been the case in recent years. Infiniti's turn-around will start in 2020, when the aforementioned QX55 makes its debut after a brief delay.