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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:

2021 Infiniti Q60 starts at $42,675

The 2021 Infiniti Q60 coupe starts at $42,675 (including $1,025 for destination), Nissan's luxury subsidiary announced today. The two-door variant of Infiniti's compact sport sedan boasts only a handful of relatively minor equipment changes for the '21 model year.  The base (Pure) Q60 now has blind spot monitoring, rear automatic emergency braking, surround-view camera, lane departure warning, adaptive cruise control and automatic high beams as standard equipment. The high-output Red Sport model gains available power-folding outside mirrors and a tweaked carbon fiber interior trim package.  Apart from that and two new paint colors — Slate Gray and Grand Blue — the Q60 is otherwise unchanged for 2021. Infiniti pared down the Q50 sedan and Q60 coupe lineups fairly comprehensively for the 2019 model year, stripping out some trims and the base, four-cylinder engine option in order to streamline its hierarchy. Only the 3.0t Pure, 3.0t Luxe and Red Sport models remain. Also gone are 2020's Edition 30 models, which celebrated Infiniti's three-decade anniversary, but customers can easily patch together the same builds from 2021's available options. Infiniti's consumer site has been updated with 2021 models, and customers can expect them to arrive in showrooms before the end of the year.  Related Video: