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Porsche wins the 2015 24 Hours of Le Mans

The question going into this year's 24 Hours of Le Mans was whether or not the Porsche 919 Hybrid would be able to combine its qualifying pace with race reliability. After battling neck-and-neck with Audi's R18 for most of the race, the answer is a resounding yes. Not only did Porsche drivers climb the first two spots on the podium, they did so without any major mishaps on track. This win is the first overall trophy for Porsche since 1998. Audi previously won the last five races, and 13 of the last 15. Corvette also returned to the winner's circle, with the No. 64 C7.R taking winning the GTE Pro division. The victory is the first class win for Corvette since 2011. KCMG won the LMP2 class in ninth overall. With 45 minutes to go the No. 98 Aston Martin crashed out of first place in GTE Amateur, giving the class win to SMP Racing's Ferrari and second place to the Patrick Dempsey Racing Porsche 911 RSR. For the full list of official results, click here. The GTE Pro class proved to be just as exciting as the P1 class, with a four-way battle for first after four hours into the race. For most of the race, the battle at the top went back and forth between the two German manufacturers. An tire puncture in the No. 7 Audi gave up the lead to Porsche, and moments later a crash forced the No. 8 into the garage. But a three-minute replacement of the front and rear bodywork kept the Audi in contention. As the race wore into the night, Porsche maintained a slightly faster pace than Audi. Nick Tandy took the lead on Lap 253 early Sunday morning, and car No. 19 never gave up the top position. The win is the first for all three drivers of the No. 19 – Nico Hulkenberg, Earl Bamber, and Nick Tandy. A lap behind in second was the No. 17 Porsche. The Audis fought reliability problems late in the race but still finished third with the No. 7 R18. The GTE Pro class proved to be just as exciting as the P1 class, with a four-way battle for first after four hours into the race. As the Aston Martin cars dropped away, the lone Corvette Racing entry took over, followed by a charging AF Corse team Ferrari 458 Italia. The Corvette and Ferrari continued to trade places in the final hours until gearbox trouble forced the No. 51 Ferrari out of contention. It was eventually passed by the other AF Corse car, No. 71. Nissan experienced all the pain of a first-year effort with its front-wheel-drive GT-R LM Nismo.

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

Ghosn shares 'truth about Autonomous Drive cars'

Drive our cars. No, wait, don't drive our cars. Nissan chief Carlos Ghosn is delivering a message about autonomous driving that's less mixed than it sounds on the surface. As part of his public dialogue from LinkedIn's "Influencer" series, Ghosn said in a company announcement that "hands-free" driving is part of the Japanese automaker's "near-term technology." In fact, cars that can self-drive in heavy, stop-and-go traffic, may be ready for the market by late 2016. That should please texters everywhere. 2018 may be the year cars with lane-changing, hazard-avoiding capabilities will see the light of day, while by 2020, Nissan may feature a "complete package" of autonomous-driving features, Ghosn writes. As for the proverbial driver-less car? That's at least a decade out but ultimately likely, according to Ghosn. Nissan said early last year that some autonomous versions of its vehicles may be available in the US by the end of the decade, and that it was in talks with California regulators about the idea of self-driving cars on the state's roads. Nissan has worked with institutions such as MIT, Stanford and Oxford at developing autonomous-drive concepts, and has tested self-driving versions of the Leaf electric vehicles in Japan. Check out excerpts of the Ghosn "interview" below. The truth about Autonomous Drive cars, by Carlos Ghosn The following is the latest from Carlos Ghosn's LinkedIn Influencer series. Read all of Mr. Ghosn's LinkedIn Influencer articles here. There has been a lot of talk in the media recently about "Autonomous Drive" technology and a potential future of driverless cars. No doubt, Autonomous Drive technology will change how we approach driving. I expect it to result a significant transformation in transportation. But all the talk has left many drivers a bit confused. After years of promoting "eyes on the road, hands on the wheel," the auto industry is now talking about reading your email or a book while you drive – and the prospect of maybe not even needing a driver. So it's a good time to address the questions that arise whenever this subject comes up: Q: What is Autonomous Drive? A: Autonomous Drive combines the technology of robotics, artificial intelligence, sensors and car-to-car connectivity. It is a range of technologies that will be added to our cars over the next several years.