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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

Renault keeps 15% stake in Nissan, transfers majority of shares to French trust

Renault and Nissan completed a landmark deal to rebalance their 24-year-long alliance, paving the way for a new relationship after years of acrimony between the two partners. The automakers on Wednesday announced the creation of a French trust to which Renault transferred 28.4% of Nissan shares. The companies first disclosed plans for the trust in January. Renault Group and Nissan now have a cross-shareholding of 15% with lock-up and standstill obligations, the companies and junior alliance partner Mitsubishi Motors Corp. said in a statement. Renault managers in recent weeks have reiterated that staff should no longer share information with their Nissan counterparts, according to people familiar with the situation, after the French carmaker announced in September that aspects of the alliance would be unwound by year-end.  Taken together with the deal to equalize their cross-shareholdings at 15%, the developments are the clearest indications yet that members of one of the world’s biggest automotive tie-ups are increasingly going their separate ways. Renault told employees in September it was moving away from common structures with Nissan in favor of a new, project-by-project approach to working together. The dissolution of the companiesÂ’ joint purchasing organization means the two will no longer pool information on a regular basis due to antitrust concerns. The sell-down of shares held by the trustee will be coordinated with Nissan, which will have the right of first offer to purchase the stock. The trust will have no obligation to sell the shares within a specific or pre-determined period of time. The new alliance deal presented to investors in London in February followed months of tense negotiations that nearly collapsed late last year due to sticking points on intellectual property and disagreement over the valuation of RenaultÂ’s electric-vehicle and software arm Ampere, in which Nissan has agreed to invest. The alliance dates back to 1999, when Renault rescued Nissan with a cash injection and the two formed one of the biggest auto partnerships in the industry. Rivalries and mutual suspicion mounted over the years and came to a head when former leader Carlos Ghosn openly contemplated merging the two companies, contributing to his downfall.

Nissan e-NV200 EV charges into Tokyo

Nissan has already shown its e-NV200 in Detroit and Frankfurt in conceptual form, now its home market is getting an up-close look at the production all-electric compact van at the Tokyo Motor Show. While it doesn't sound like the e-NV200 will be making its way to the US anytime soon, it will go on sale on sale in Europe in the middle of next year and in Japan by early 2015.
The electric NV200 will be built in Barcelona, Spain, and while that EV-minded city has committed to using the van for public transportation, Nissan's hometown of Yokohama, Japan will also put the zero-emission vehicle to work in its public services fleet. Nissan has yet to reveal the production specs for the e-NV200 - including range - we do know that it will share much of its drivetrain with smaller Nissan Leaf. Check out the press release posted below for more information about the e-NV200 and Nissan's EV efforts in Yokohama.