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Autocar pits Porsche 911 Turbo S against Formula 4 racer

There is a long-running argument among performance car fans: power vs. weight. In one corner you get cars generally with small engines making modest numbers but able to corner like they are telepathic, and in the other there are big thumping mills that are rocketships in a straight line but lumber in the turns. Autocar takes an interesting look this continuum in a recent video pitting a 552-hp Porsche 911 Turbo S against a 185-hp Formula 4 racecar. It hopes to find whether the Porsche's huge power advantage is enough to defeat the better grip and aero offered by the nimble racer.
There's no doubt that the Porsche is an utterly fantastic road car. The 911 Turbo looks mean with all of those intakes to suck in cool air, and it backs up the posture with huge amounts of grip available thanks to its all-wheel drive-system. However, at 3,538 pounds, it's a bit of a porker compared to the 1,135-pound Formula 4 car. The open-wheel car boasts just a 2.0-liter naturally aspirated four-cylinder from Ford and a six-speed sequential-manual gearbox, but it has loads of downforce to make up for it.
It shouldn't be a surprise that the formula car wins in the corners. After all, that's what it's made for. So do you think the massive horsepower superiority of the Porsche is enough to even the playing field? Scroll down to watch the video and find out, and even if you're not curious of the winner the 911 does some mean powerslides.

Porsche 911 GT3 RS spec sheet leaked, promises 500 hp

Axis of Oversteer has three pages of what's purported to be the spec sheet for the Porsche 911 GT3 RS, and it's got a few bolded items noting key differences with the already spectacular 911 GT3. Prime among them is its output, pegged at exactly 500 horsepower and 339 pound-feet of torque, which looks at first blush to be a minor bump: just 25 hp and 14 lb-ft over the GT3, and the redline drops 200 rpm to 8,800 rpm. If the document is accurate, though, there will be a hefty dose of weight loss to make the most of it. The bodyshell and doors are aluminum, carbon fiber reinforced plastic is used for those vented front fenders (the vanes are plastic), the front trunklid, the rear engine cover, and the rear wing, while the roof is made of magnesium and the side windows are polycarbonate. The bucket seats, door entry guards, and other interior trim pieces are also fashioned from CFRP, and it gets lightweight door panels with pull-loops. Elsewhere around the coupe, the body grows wider by 50 millimeters in front and 30 mm in back over a track that's 36 mm wider. There's a pit-lane speed limiter for track days, tinted taillights, an optional Clubsport package with a six-point seatbelt, and GT3 RS logos everywhere. It's looking more and more like this car was developed to define the word "epic." Featured Gallery Porsche 911 GT3 RS spec sheet Related Gallery 2016 Porsche 911 GT3 RS News Source: Axis of Oversteer Geneva Motor Show Porsche Coupe Performance 2015 Geneva Motor Show porsche 911 gt3

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.