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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's Kelly examined at Japanese hospital after securing bail

TOKYO — Nissan director Greg Kelly was being examined in a hospital on Wednesday, a source said, a day after he was released on bail from a Tokyo jail where his former boss Carlos Ghosn is still being detained. Kelly, an American who was released late on Christmas Day after more than a month in detention, has been charged with conspiring to under-report Ghosn's income. He posted bail of 70 million yen ($640,000). Their Nov. 19 arrests jolted the global car industry and has strained Nissan's alliance with French car maker Renault SA. Nissan's board last month fired Ghosn as chairman and Kelly as representative director, although both men technically still remain board members who can only be removed by shareholders. Kelly suffers from spinal stenosis, causing numbness, tingling and shooting pain in his extremities, according to a video message last week from his wife, Dee Kelly, appealing for his release. The condition compresses or pinches the spinal cord. Those symptoms worsened during his five weeks in the Tokyo Detention Center, his wife said, citing Kelly's lawyer. Kelly was scheduled to have surgery on Dec. 7 in Nashville, Tennessee, but flew to Japan last month after being told that he was needed in person at a board meeting, Dee Kelly said in the video. Kelly was arrested soon after his arrival. Under the conditions of his bail, Kelly is barred from traveling overseas and his residence must be restricted to a designated place, the Tokyo District Court said. Lawyers say that travel exceptions can be made on a case-by-case basis. Kelly walked out of the detention center around 10:45 pm (1345 GMT) Thursday night wearing a light-colored jacket and was whisked away in a black taxi. Japanese media showed footage of Kelly entering a hospital around midnight. After his release from detention, Kelly issued a statement through his lawyer saying he had not falsified any documents and looked forward to restoring his honor in court. "I believe my innocence will be revealed in the trial," he said. Kelly also said in the statement he wanted to see a doctor immediately and get the appropriate treatment or operation originally scheduled for early December. The office of his lawyer, Yoichi Kitamura, did not respond to requests for comment. Ghosn was re-arrested on Friday based on suspicions that around October 2008 he shifted personal trades to Nissan to make it responsible for 1.85 billion yen ($16.6 million) in appraisal losses, prosecutors said.

Nissan bringing GT-R LM Nismo to Le Mans in 2015 [w/videos]

The Nissan Zeod RC hybrid racecar is certainly cool with its pointy looks, we're excited to see it run, but it isn't built to win races so much as push boundaries. But we might not have too to wait long for one of the Japanese brand's vehicles to claim an overall victory at the 24 Hours of Le Mans, as well. The company is announcing the GT-R LM Nismo racecar with a two-car, full factory effort in the top LMP1 class of the 2015 FIA World Endurance Championship, including Le Mans.
Details about the new racer are almost nonexistent at the moment. The only glimpses that we have are its silhouette under a sheet (above) and the briefest peek at its quad circular taillights in one of the teaser videos. However, the team is making some big promises about the car. "We want to win in a very different way to that of our rivals. We won't be turning up in a vehicle, which is a basically another hybrid that looks like another Porsche, Audi or Toyota - they all look the same to me," said Nissan's Chief Planning Officer and Executive Vice President Andy Palmer in the official announcement. Mechanically, Nissan is revealing even less about the GT-R LM Nismo for now. We are just going to have to wait and find out.
The brand will be aiming for a win in the 24-hour race, but it won't come easy. Nissan will absolutely face stiff competition from the combined forces of Audi, Porsche and Toyota in the top LMP1 class. Scroll down to watch two teaser videos for the newest member of the GT-R family and read the full announcement.