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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 keeps us on our toes for Q50 Eau Rouge

If you've been watching the evolving rapprochement between Infiniti and Red Bull Racing, and have wondered what the point was if the Japanese automaker didn't capitalize on its expensive collaboration with the world-champion Formula One team, then Infiniti may finally have the answer come the Detroit Auto Show next month.
That's where Nissan's premium division is set to unveil the Q50 Eau Rouge concept, a show car set to showcase its F1 involvement in the form of a jazzed-up sports sedan. We still don't have much to go on in terms of what the concept car will actually entail beyond a body kit, but Infiniti has launched a dedicated website for the reveal and with it, this teaser video. It still doesn't tell us much, but it's a cool animation just the same, so check it out below.

Infiniti Q70 adds long-wheelbase model, fresh looks for 2015

After all the work done for the Q50, Infiniti has finally given some attention to its flagship sedan, the Q70 (or, for those that refuse to use the brand's latest nomenclature, the M). While the refreshed sedan sports a few visual tweaks, the big bit of news is that it's the first vehicle in its segment to offer both long- and a short-wheelbase options (keep in mind, both BMW and Audi offer LWBs in China, but not in the US).
Infiniti has stretched the standard car's 114.2-inch wheelbase to 120.1 inches, lengthening the car 7.3 inches overall. Nearly the entire wheelbase increase is dedicated to rear-seat legroom, with a substantial increase of 5.6 inches overall. As for the effect the stretching had on the Q70's looks, well, we actually think it might look better with the longer wheelbase.
It's a nice change of proportions that is complemented by the fresh looks of the facelifted Q70. New head and taillights are the biggest changes, with full LEDs in the back and LED accents in front. There's certainly a bit of Q50 in the front, thanks to both the headlights and the new "double-arch" grille, complete with mesh-finish inserts. In the cabin, material quality looks to remain impressive, with Infiniti's cool silver-dust wood trim being shown off in the press images. Outside of that, interior changes are kept to a minimum.