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Porsche 911 and Nissan 350Z get smoked by unlikely hero

So a Nissan 350Z Procharger and a current Porsche 911 GT3 drive onto the Autobahn together - stop me if you've heard this one before - and they decide to race. We're not sure how much power the Z is packing, but the stock model topped out at 306 horsepower on the last year of its run in 2009. And if that's a stock GT3 then it will be rocking something like 475 horsepower. So the Z and the GT3 give it a racing go, and just as one of them starts to pull away they're both overtaken by one of the most unlikely dark horses you could imagine. It's a really short video and we won't spoil the surprise, so check it out above. News Source: Woreth V12 via YouTube Nissan Porsche Volkswagen Coupe Hatchback Luxury Racing Vehicles Performance Videos porsche 911 gt3 autobahn

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

Is Nissan's Le Mans LMP1 racer really going to be front engined?

Since debuting the Nissan GT-R LM Nismo under a sheet earlier this year, Nissan has kept a very tight wrap on details about the racer. The company simply promised that the model would be on the starting grid for the 2015 24 Hours of Le Mans. However, the automaker had an aggressive attitude about the new program and said that the vehicle would "win in a very different way." The brand also hinted the final result wouldn't look like its competitors. This rendering suggests just how divergent the GT-R LM might be. Posted by Jalopnik, the rendering was supposedly based on the descriptions of people who have actually seen the racer. They described a car with a very long nose, and a rear that was potentially narrower than the front. From those details the pictures of a reverse Deltawing is almost conceivable. Judging by the original teaser image, this description actually sounds somewhat plausible too. The draping of the sheet in that photo could suggest some empty space at the back. According to this rumor, underneath that long snout could be an even bigger revelation – the engine. These days putting the powerplant ahead of the driver in a top-class endurance racer – even if it's behind the front axle for a mid-engine layout – is almost unheard of. Nissan trying it would certainly fall under a different way of winning. Though, such a thing was done by Panoz in the 2000s. Nissan is clear about keeping the racecar and road version at least somewhat related, especially technologically. Jalopnik speculates that the engine could be a gasoline-fueled twin-turbocharged V6 powering the rear wheels and a hybrid spinning the front and rear with a total system output of 1,000 horsepower or more. That figure is right on the money for modern LMP1 cars since the 2014-championship winning Toyota TS040 packs about 986 hp total. In the past few years, Nissan has failed to finish Le Mans with both the Deltawing that it sponsored and the ZEOD RC project. If these rumors prove true, then even getting the GT-R LM to see the checkered flag could be quite an accomplishment no matter where it finishes. Rumor has it that Nissan might show at least a glimpse of the vehicle during the company's Super Bowl ad this year. Related Gallery 2015 Nissan GT-R LM Nismo Announcement View 16 Photos News Source: JalopnikImage Credit: Jason Torchinsky via Jalopnik Design/Style Motorsports Nissan Racing Vehicles rendering nissan gt-r lm nismo nissan gt-r lm