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Porsche LMP1 to use 4-cyl hybrid powertrain [w/poll]

With the Formula One season - and indeed his entire F1 career - now behind him, Mark Webber took advantage of his early release from Red Bull Racing to try out the new LMP1 which Porsche is developing, undertaking the final test session of 2013 before Porsche throws it head first into the FIA World Endurance Championship next April. The session - which followed previous tests at Magny-Cours, Monza, Paul Ricard and the Eurospeedway at Lausitz - was held at the Algarve circuit in Portimão, Portgual, in collaboration with Michelin, which is developing the tires for the car. But that's hardly the news here.
No, the news is the first confirmation we've seen on the type of powertrain Porsche has developed for its new Le Mans prototype: a gasoline-burning four-cylinder engine with direct injection and two energy recovery systems. This contrasts sharply with the V6 turbodiesel and single electric motor used by Audi in the R18 e-tron Quattro (or at least the outgoing version) or the naturally-aspirated V8 and single electric motor found in the Toyota TS030. Flexibility in the rules set down by the FIA and ACO give the manufacturers that kind of latitude, prompting F1 teams like Ferrari and Renault to consider developing their new engines for Le Mans prototypes as well.
At this point Porsche isn't saying how large its four-cylinder engine is or how much power it will produce. But it'll be interesting, to say the least, to see how it fares against the Audi and Toyota in next year's championship and at Le Mans when it'll be piloted by Webber, former Lola LMP1 driver Neel Jani and Audi's own 2011 Le Mans-winning pair of Romain Dumas and Timo Bernhard.

Father-son team grows close by building tuned Porsche

We've seen several heartwarming videos of kids bonding over cars with their parents, whether racing together or giving them as gifts. The story of Leh Keen and his father McGrath, though, is somewhat different. Not many dads are looking for a vehicle quite this mental.
As Leh tells it, his dad saw a video online of one of the wild Porsches from Japanese tuner Rauh-Welt Begriff and decided that he needed one of the creations in his own garage. Since Leh knows something about cars himself as a driver for Alex Job Racing in the United SportsCar Championship, McGrath put his son in charge of managing the build from the company.
When the car made it to the US for completion from Rauh's famed builder Nakai, father and son bonded over the red, widebody 993-platform 911. The final product is certainly eye-catching. Scroll down to watch the video that features not only an engrossing father-son tale but also a seriously wicked, tuned Porsche from one of Japan's finest.

Magnus Walker pops up again, this time with his Irish Green 911

He was the subject of a short film called Urban Outlaw. He has been on Jay Leno's Garage. Twice. He even graced the cover of Road & Track in June. And after all of that, he appeared in a video by Hong Kong-based Silly Thing. So it isn't really surprising that Magnus Walker is at the center of attention in the latest video from XCAR, but it's surprising - and a treat - to see his mostly original Irish Green 1966 Porsche 911.
Powered by an air-cooled 2.0-liter flat six with 130 horsepower (more like 120 hp today, Walker says), riding on 5.5-inch wide wheels and turned with a wooden steering wheel, the little green 911 does represent some of the best aspects of classic car motoring.
Head on below to watch the long-form video on Walker and his Porsche, but if your time is limited, you're not missing much if you call it quits at five minutes - especially if you've seen his aforementioned videos before.