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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

Nissan Rogue, Pathfinder and Infiniti QX60 recalled for loose lug nuts

Nissan has announced a small recall affecting 334 vehicles built just a few months back. 2014 Nissan Rogue and Pathfinder and 2014 Infiniti QX60 CUVs built between March 7 and March 10, 2014 could be susceptible to a loose lug nut on the passenger side wheels.
We shouldn't have to explain why a loose lug is a bit of an issue. Thankfully, it's also a ridiculously easy fix. Nissan obviously recommends reporting to your local dealer - and it will begin notifying owners of affected vehicles - but this is one of those rare recalls that has an easy DIY element to it.
Take a look below for a brief bulletin from the National Highway Traffic Safety Administration.

Renault-Nissan zero-emissions car sales whir past 100,000 [w/video]

The electric vehicle has gone gold at Renault-Nissan, clocking 100,000 sales in a three-year period that began with the first Nissan Leaf being sold in Silicon Valley, California in 2010. Since then, the Leaf has become the EV champion of the world, selling more than 71,000 units so far, the majority of those in the US. The 100,000th EV sold by the Alliance was also a Leaf and also sold in the US, but on the other side of the country, in Georgia.
By comparison, Renault has sold 30,000 electric vehicles since late 2011, looking after other segments of the EV market with the Kangoo Z.E., Zoe, Twizy and Fluence Z.E. The alliance estimates that its efforts have been driven 5.2 million ion-powered miles and saved 14 million gallons of oil since they appeared. For a bit of sobering context, the US averaged 18.83 million barrels of oil per day in 2011, which is almost 791 million gallons. Per day.
So we're getting there, albeit slowly. Quietly. There's a press release and a video below with more details on the achievement.