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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

Nissan NV200 Chicago Taxi looking for a #HailYes

Nissan may be loaning out its small van to General Motors for its Chicago Auto Show debut, but that doesn't mean that Chevrolet is the only one with new NV200-based wares to share. On the heels of launching its Taxi Of Tomorrow for New York City, the Japanese automaker is giving America's Second City a livery of its own.
Shown here in a green and white paint scheme that "expresses a modern take on a historically popular Chicago taxi color," this NV200 Chicago Taxi is the company's less-than-subtle bid to capture some of the city's cab business, which is estimated to have about 7,000 units in service. Nissan is urging the public to generate discussion on social media and hopefully capture local taxi fleet operators' attention with a #HailYes campaign.
Beyond its unique appearance, this NV200 appears untouched, which means it's still powered by a 2.0-liter four-cylinder engine backed by a version of Nissan's ubiquitous XTronic continuously variable transmission.

Nissan Leaf and the future of auto shows | Autoblog Podcast #525

Related: We obsessively covered the Frankfurt Motor Show — here's our complete coverage On this week's Autoblog Podcast, Editor-in-Chief Greg Migliore is joined by Associate Editor Joel Stocksdale. The pair discuss the long-awaited reveal of the second-generation Nissan Leaf as well as the Alfa Romeo Giulia and BMW M550i that recently passed through the office. They also preview the 2017 Frankfurt Motor Show and discuss the future and relevance of auto shows. The rundown is below. Remember, if you have a car-related question you'd like us to answer or you want buying advice of your very own, send a message or a voice memo to podcast@autoblog.com. (If you record audio of a question with your phone and get it to us, you could hear your very own voice on the podcast. Neat, right?) And if you have other questions or comments, please send those too. Autoblog Podcast #525The video meant to be presented here is no longer available. Sorry for the inconvenience.Get The Podcast iTunes – Subscribe to the Autoblog Podcast in iTunes RSS – Add the Autoblog Podcast feed to your RSS aggregator MP3 – Download the MP3 directly Topics and stories we mention Rundown Nissan Leaf reveal Frankfurt Motor Show preview What we're driving: Alfa Romeo Giulia and BMW M550i Unpopular opinion: the relevance of auto shows Spend my money Feedback Email – Podcast at Autoblog dot com Review the show on iTunes Image Credit: BMW, Nissan Green Podcasts Frankfurt Motor Show Alfa Romeo BMW Nissan Hatchback Electric Luxury Sedan alfa romeo giulia