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Ex-F1 driver Mark Webber has tough life, shakes down Porsche 911 GT3 RS

It's good work if you can get it, and Mark Webber has got it. The works driver for the Porsche World Endurance Championship Team was apparently asked to moonlight in a video shoot for the company's new 911 GT3 RS at the Nurburgring Nordschleife, and what do you know, he complied. They don't appear to be going too quickly, and a racing driver asked to rein in what will be one of the most blistering cars we'll see this year must be very serious work, because Webber doesn't appear to be smiling at all. We'll guess there's a big smile on the inside, though, and some tales to tell to his Porsche teammates at the next WEC race. Maybe the next time we see the 911 GT3 RS at the 'Ring, it will be doing the timed lap we're all waiting for. Related Video:

Mercedes-AMG GT vs. Porsche 911 [w/poll]

Mercedes-Benz designed the AMG GT to compete head-on with the Porsche 911. It's a clear, singular purpose, and Benz brings a lot of money, technology and race-bred expertise to the fight.
The AMG GT is Merc's followup to the awesome SLS AMG, the retro-modern, gullwing-doored coupe that took us by storm half a decade ago. But this new GT coupe is a more focused sports car than the SLS, rather than an all out supercar capable of extreme performance. It's got a brand-new V8 engine, and state-of-the-art technology that help it to not only be a proper Mercedes, but to be a serious performer.
Mercedes will sell its new baby in two models. The GT S arrives first, in spring 2015, followed by the standard GT in mid-2016. Of course, there's room to grow from there. And while Porsche may have already expanded its 911 range to include a vast variety of models, here's how Stuttgart's icon stacks up against Affalterbach's bad boy.

Chris Harris brings together the 918 Spyder, LaFerrari, and P1

The Porsche 918 Spyder, Ferrari LaFerrari, and McLaren P1 show that a hybrid powertrain can make for blistering performance despite its electric assist. This trio doesn't arrive on track together very often, but Chris Harris assembled these three stars at the Portimao circuit for a nearly hour-long demonstration of their amazing capabilities. So, which one is quickest around the track? Harris provides an answer with in-car video of all three contenders. His team also goes out of its way to even the playing field by sourcing tires independently from Pirelli for the P1 and LaFerrari. With the technical part out of the way, Harris can start having fun by doing his usual slides during the driving comparison. Tiff Needell and Marino Franchitti also eventually show up to provide the perfect recipe for a track battle in these hypercars. If you don't have the time, skip about 14:25 into the clip just to see the lap times. However, those numbers only tell a tiny part of the story. The whole video is definitely worth a watch.