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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

New Nissan Pulsar marks brand's return to the European C-segment [w/videos]

Following a small teaser, Nissan has unveiled its newest entry into the hotly contested European C-segment. Making new use of the Pulsar nameplate, it will attempt to take the fight to market stalwarts, like the Ford Focus, Volkswagen Golf and Vauxhall Astra.
The new five-door will be built on Nissan's modular CMF2 architecture, which also underpins the Euro-spec Qashqai and X-Trail (known in the US as the Rogue). It's a larger vehicle than one of its main challengers, the Golf, riding on a 106.3-inch wheelbase, which is 2.4 inches longer than the VW. It's also longer overall, at 172.6 inches.
The new Pulsar is a moderately powered little five-door, boasting an engine lineup familiar to anyone that knows the Qashqai. A 1.2-liter, turbocharged gas engine offers up 113 horsepower, while those that need a bit more oomph can wait for the late-availability, 187-hp, 1.6-liter turbo that American drivers will know from the Juke crossover. Diesel fans will be able to opt for a 1.5-liter mill that delivers 192 pound-feet of torque and 108 hp. No surprise here, but continuously variable transmissions are the order of the day.

Nissan GT-R, Armada and the new Kia Sorento | Autoblog Podcast #658

In this week's Autoblog Podcast, Editor-in-Chief Greg Migliore is joined by Senior Editor, Green, John Beltz Snyder and Road Test Editor Zac Palmer for the final episode of 2020. They've been driving some interesting cars, including the Nissan GT-R, the new Nissan Armada, a Mercedes-Benz GLA and a pair of new-gen Kia Sorentos. They talk a bit about an interesting new EV called the Ace from Alpha Motor Corporation. Finally, the trio takes turns talking about their favorite cars they drove this year. Enjoy, and we'll be back with more episodes in 2021. Autoblog Podcast #658 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 Rundown What we're driving:2021 Nissan GT-R 2021 Nissan Armada 2021 Mercedes-Benz GLA 2021 Kia Sorento Alpha Motor Corporation unveils Ace electric coupe Our favorite cars of the year: Zac: Lotus Evora GT John: Polestar 2 Greg: McLaren GT Feedback Email – Podcast@Autoblog.com Review the show on iTunes Related Video: Green Podcasts Kia Lotus McLaren Mercedes-Benz Nissan Coupe Crossover SUV Electric Luxury Performance Sedan Polestar