Like New 2013 Infiniti G37 Convertible Ipl 2 Owner Clean Carfax Vehicle on 2040-cars

Auto blog

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

Submit your questions for Autoblog Podcast #344 LIVE!

We're set to record Autoblog Podcast #344 tonight, joined by Doug DeMuro, author of Plays With Cars, formerly of Porsche Cars North America, and all-around swell guy. You can drop us your questions and comments via our Q&A module below, and we'll give them extra-diligent attention. Subscribe to the Autoblog Podcast in iTunes if you haven't already done so, and if you want to take it all in live, tune in to our UStream (audio only) channel at 10:00 PM Eastern tonight.
Discussion Topics for Autoblog Podcast Episode #344
BRZ STI?

Infiniti spruces up the Q50 for 2018

Though overshadowed by the literally larger QX80 Monograph SUV concept, Infiniti's revised 2018 Q50 still made an appearance at the stand in New York. It joins a long list of cars including the Acura TLX, Hyundai Sonata, Mitsubishi Outlander Sport, VW Golf, and Toyota Sienna and Yaris that all went under the knife for the show. The Infiniti Q50's update may be one of the most mild, though, as it only consisted of cosmetic changes. Up front, the grille has been enlarged and given more prominent swoops at each corner. On the S version, sharp creases appear on either side of the primary grille and descend down to the lower, center grille. The outboard grilles of the front bumper have changed shape, too, and they now feature contrasting black plastic trim. The standard Q50 has a new bumper, as well, and though less aggressive than the S version, it still looks sporty with a more pronounced chin spoiler. Both iterations of the 2018 Q50 share the same tail end. The main change is in the rear bumper. A center diffuser has now appeared at the base. The contour of the diffuser is echoed by two creases in the bumper at progressively higher points. On the S model, the panel between the diffuser and the first crease is painted black, and the diffuser is painted in the body color. The standard model's entire bumper is painted in body color, and the diffuser looks to be a more muted black or gray. Inside, even fewer changes have been made. A new steering wheel with reshaped thumb grips is now included. Infiniti also added new stitching to the instrument panel cover and leather shift knob. You'll be able to examine all of these changes up close at an Infiniti dealer this summer when the cars arrive. Related Video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.