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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.

Porsche Macan to get four-cylinder engines

Porsche hasn't offered a four-cylinder engine since the 968 went out of production in 1995 - the better part of two decades ago. There'd been talk of a four-pot Boxster or an even smaller model to slot in below it, but while the latest intel indicates that Porsche is moving ahead with its four-cylinder plans, it's a different kind of vehicle that will get it first.
That, of course, would be the new Macan. Just revealed a few weeks ago at the LA Auto Show, the Macan crossover is being launched with a pair of twin-turbocharged V6 engines (a 3.0 with 340 horsepower and a 3.6 with 400 hp) and a six-cylinder turbodiesel with 258 hp. But smaller engines, according to emerging reports from Autocar and Auto Express, are on their way.
Word has it that Porsche is preparing a 2.0-liter turbo four with 280 horsepower and a diesel with the same displacement and cylinder count, engines that will power new entry-level Macan models that will slot in beneath the existing Macan S, Macan S Diesel and Macan Turbo. While the diesel is tipped to be ported over from the Volkswagen parts bin, the four-cylinder gasoline engine is said to be under development by Porsche itself, which could mean it will have a boxer layout.

Porsche unlocks secrets of its mid-engine 911

Porsche is beginning to realize that it's sitting on a goldmine of automotive history with its secret vault full of rare cars. Autoblog toured it a few months ago, and we were amazed at all of the curiosities hidden inside. Now, it's starting to let more folks in thanks to a new series of YouTube videos. The first covered the 965 prototype that shoved a water-cooled, Audi V8 into one of its cars. Next up, a mid-engine 911 that acted as the powertrain test mule for the Boxster.
The Porsche 911 is inextricably linked to its rear-engine layout. They go together like peanut butter and jelly. However, at the time Porsche was developing the Boxster, the company didn't want to lay all of its cards out of the table during testing. As opposed to using camouflage, it put a whole different car on top. The prototype looked just like any other 911 Targa of the day, but the biggest giveaway that something was amiss was the heavily tinted rear window. By obscuring it, inquisitive journalists couldn't peak at the new engine that replaced the backseat.
It might not look like anything too important on the outside, but this is a major piece of Porsche Boxster history underneath. Scroll down to watch the video about this fascinating prototype.