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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 recalls nearly 20,000 NV vans over gearshift issue

Nissan is recalling 18,800 NV vans built between December 20, 2010 and January 4, 2013. Certain 2012 and 2013 models equipped with a steering-column-mounted transmission shift levers may have been built with improperly installed shift mechanisms.
If the NV's gear selector plate lock clip wasn't installed correctly, normal road vibration could result in a gear position indicator that does not match the actual gear selection. As a result, when the driver selects 'park,' the transmission could still be in gear or in neutral, and roll away. The National Highway Traffic Safety Administration says this condition greatly increased the risk of accident and injury.
Nissan will inspect the gear selector lock clip and replace the part if necessary free of charge. Owners can expect to be notified once the recall campaign begins on April 8, 2013. Read the full recall notice below for more information.

Strains between France and Italy risk Renault-FCA merger

PARIS/ROME — Fiat Chrysler's proposed $35 billion merger with Renault has cheered investors, won conditional support from Paris and Rome and even earned cautious backing from trade unions. Beneath this veneer, however, the bold attempt to create the world's third-largest carmaker risks becoming rapidly embroiled in the fraught relationship between France's europhile President Emmanuel Macron and Italy's euroskeptic leaders. For while Deputy Prime Minister Matteo Salvini hailed the proposal as a "brilliant operation," Italy's creaking, state-subsidized Fiat factories are likely to bear the brunt of any production-related cost savings. FCA and Renault said this week that more than 5 billion euros ($5.6 billion) of annual savings would come mainly from combining platforms, consolidating powertrain and electrification investments and the benefits of increased scale. Salvini and France's Finance Minister Bruno Le Maire, who called the deal a "good opportunity" to build a European industrial champion able to compete with China and the United States, have both said they want guarantees on local jobs. "It's not every day that I agree with Salvini," said Le Maire, whose government appears to hold the trump cards. When it comes to where any job cuts fall, France will be helped by its existing 15 percent holding in Renault, whose superior efficiency at its five French plants makes it better placed to handle a supply glut, the demise of the petrol engine and the investments needed for electric and autonomous vehicles. "It will take many, many years to find real savings, and ugly political and operational realities can often swamp the potential of such new entities," Bernstein analyst Max Warburton said of the FCA-Renault plan to rival Japan's Toyota and Germany's Volkswagen. Advantage France? As well as Italy's government having to cope with the aftermath of European elections, which coincided with news of the FCA-Renault plans, political leaders in Rome were only informed shortly before the deal was made public, an FCA source said. This contrasted with the way the French government was treated, with Fiat Chrysler Chairman John Elkann, a fluent French speaker, letting it know of his merger proposal to Renault weeks ago, a French government official said.