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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

Datsun's lackluster initial sales fall below Tata Nano

When Tata introduced the Nano back in 2008, everyone was amazed at how cheap it was. They called it a game changer, but no game was changed. In fact, it took Tata five years to sell the 250,000 units it had the capacity to build in a single year. As it turns out, even buyers in what economists call "developing markets" like India aren't necessarily interested in buying an ultra-cheap automobile. And now it appears that Nissan may be falling into the same trap.
A little over a year ago, Nissan revived its old moniker Datsun to serve as a budget brand - similar to what ally Renault did with Dacia. Its lineup (consisting of models like the Go hatchback, Go+ minivan, On-Do sedan and Mi-Do hatch) is largely based on old architecture, packaged with little more than basic equipment and sold at rock-bottom prices. But Bloomberg reports that, even in the brand's core markets like India and Indonesia, the new Datsuns haven't been selling.
According to local industry figures, Datsun has sold fewer than 10,000 units of its $5,100 Go hatchbacks in India since its introduction back in March. Maruti Suzuki, by comparison, sells twice that many of its similarly priced Alto hatchbacks every month. In fact, after peaking in April, Datsun only sold 607 units in India this past July, dipping 77 percent to drop below even the number of Nanos which Tata sold that month.

Nissan recalls 226k vehicles over airbag inflators

Nissan and Infiniti are the latest automakers to issue recalls involving faulty airbag inflators from Takata. The Japanese automakers have announced campaigns covering about 226,326 units from seven models built in the early 2000s because they contain the bad part in the passenger-side, front airbag. The affected vehicles include the 2002-2004 Nissan Sentra, 2002-2003 Pathfinder and 2002-2003 Maxima, and it also covers the 2002-2003 Infiniti QX4, 2002-2003 I35, 2003 FX45 and 2003 FX35.
Like the other vehicles with the faulty inflators, it's possible for the part to rupture during airbag deployment and spray metal shrapnel at occupants. Nissan and Infiniti have even included vehicles with replacement airbags in this campaign because those parts also could have been defective. Both companies were also part of the earlier regional campaign to fix cars in high-humidity climates where the problem has been found to be the worst.
As is the usual response, Nissan and Infiniti will notify owners of the affected vehicles and will make the repair at no charge. According to the filing with the National Highway Traffic Safety Administration, these fixes will commence around August 11. Scroll down to read the report from NHTSA, or read the full defect notice as a PDF, here.