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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

Infiniti teases the next generation QX80 SUV

Our latest teaser ahead of the New York Auto Show comes to us from Infiniti. The company didn't reveal anything more than a name, the QX80 Monograph, and the single picture seen above. However, we can determine a few things from this tidbit of information. First, Infiniti is teasing a vehicle that will represent the upcoming successor to the current QX80 SUV, albeit in concept form. Second, the SUV is going to see a fairly significant redesign. The headlights are now lined up with the top half of the grille rather than the bottom, and the tops of the fenders are higher. This provides a more aggressive, square-shouldered appearance. The lower vents and front spoiler look more aggressive, too. The SUV will be fully revealed on April 11 in time for the New York Auto Show, as will more details about the vehicle. At that point we should know if this is a completely new vehicle, or a substantial refresh of the current Nissan Patrol-based SUV. Related Video:

Infiniti teases G-replacing Q50 ahead of Detroit debut

Preparing for the introduction of its new naming system and redesigned entry-level sedan, Infiniti has released a brief teaser video for the 2014 Q50. As a refresher, the Q50 is the replacement for the G37 sedan, and while we've seen spy shots of this car before, this video is our first detailed look at the production car.
All we get to see in the video is a shot of the headlight, but we get to see key elements like the stylish daytime running lights, crescent-shaped parking lights and adaptive low beams. The overall shape of the headlight is very close to what we saw earlier this year on the LE Concept. We have to wait until the Detroit Auto Show kicks off in a couple weeks to see the Q50's full design (although we're sure there will be some leaks before that point), but until then, check out the short video posted after the jump.