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2015 Mercedes-Benz S63 AMG Coupe

Conventional wisdom would dictate that adding more power and several key performance enhancements to an already very good car, like the 2015 Mercedes-Benz S550 Coupe, will end up equaling an even better car. In the case of the 2015 Mercedes-Benz S63 AMG Coupe, conventional wisdom sort of applies, but perhaps not as much as we'd have initially guessed. We'll get into the nitty gritty details in just a moment, but here's the most immediate takeaway we had in our minds as we walked away from this super coupe: The S63 AMG is excellent, but so is the slightly more mundane S550 Coupe on which it is based, and which is priced some $41,000 less expensive than its more powerful sibling. Chew on those figures while we examine what differentiates the two S-Class Coupes. Drive Notes As expected, the single greatest highlight of the 2015 S63 Coupe is its engine. As a powerplant, it's a gem. As a hand-built engineering exercise, its 577 horsepower and 664 pound-feet of torque are just as impressive in real life as they sound when recited from stat sheets. Not that the old CL63 AMG was lacking in power, but the new S63 AMG Coupe boasts 41 more horses and 74 more lb-ft than the outgoing engine. The run to 60 miles per hour takes a scant 3.9 seconds, according to M-B, aided in no small part by the car's 4Matic all-wheel-drive system and other assorted electronic brains deciding where, exactly, all those ponies should be sent. The rear-biased system is tuned to send two-thirds of the engine's power to the rear wheels in a bid to make the car feel more like what performance-minded drivers expect. Top speed is electronically limited to 186 miles per hour, which is plenty fast enough, even in the days of 200-plus-mph sedans from M-B's former corporate cousin Dodge. We didn't get anywhere near the car's maximum velocity, but our brief trips into triple-digit territory were quiet, comfortable and completely free of drama. The seven-speed automatic gearbox responds quickly to requests of your right foot, but the steering wheel-mounted paddles don't change gears as quickly as we'd like when in Manual mode. Controlled Efficiency (which we'd call Comfort) maximizes efficiency, keeping the transmission in higher gears and shifting earlier than when in Sport mode, and we didn't find much fault with the computer's shifting algorithms in either setting.

Pre-Race notes from the 2015 Nurburgring 24-Hours

Autoblog has come to the German countryside to watch the Nurburgring 24-Hour race, and just one day in, we have to say it's outstanding. Le Mans has been the highlight of our summer racing schedule for the past few years, the 'Ring 24-Hour event being the appetizer we always skipped. Earlier this year, however, while visiting Miami to check out the Cigarette Racing 50 Marauder GT S, we met Scott Preacher. He oversees digital marketing for both Cigarette and AMG during the week, then comes to Germany to compete in the VLN race series on the weekends, driving an Aston Martin Vantage GT4 for Team Mathol. If Le Mans is the Oscars of endurance racing, the Nurburgring 24-Hour race is the Screen Actors Guild award – the one voted on by the actors, for the actors. In this case it's the race by the teams and fans, for the teams and fans, even though the increasing manufacturer presence has altered the team equation. We were told that it wasn't so long ago that true privateers could win the overall, but that's not really the case anymore. Front-running teams have heavy factory involvement – Audi Sport Team Phoenix, for instance, which finished in first and third last year, has its own 'Ring race center and is running the 2016 R8; Aston Martin is represented by Aston Martin Racing and Aston Martin Test Center, and Bentley has a Bentley Motors team and uses HPT to run another team. The fan component hasn't changed, though, and you can't talk about the race for more than 60 seconds before someone brings up the battalions of spectators. Every driver we spoke to cited them as the most incredible part of this race after the track itself. It feels to us like a giant German Sebring, with thousands of people camped out in the ginormous, forested infield, many of whom have been here since Monday erecting their ornate camping compounds. There will be parties everywhere Saturday night, and so much bratwurst on the grill that the drivers can smell it when as they're blasting full speed through Wehrseifen. Even when we drove a Mercedes S63 AMG Coupe on a lap before the race, the fans waved like it was a competition. Scott Preacher's Australian co-driver Robert Thompson said, "You come around a corner and it's like you're driving full speed through the middle of a carnival." The race field itself could also be called a carnival, with an officially invited field of more than 170 cars. Even on a track that's 24.4-km long, that's like racing on the 405 at midday.

Mercedes AMG GT3 racecar due in 2016

Our life with the Mercedes-AMG GT has only just begun, and a full life it looks like it will be. The latest in preposterous two-doors from AMG is launching in GT and GT S flavors, but a few more branches of the family tree are already planned: a racing entry for the FIA GT3 championship is scheduled to appear in 2016, giving the current SLS AMG GT3 another year to gobble up victories before it takes a drive across the Styx. More exciting for those who only suit up on Sunday for church, whispers are that a we'll also get a streetable version of the race car - not called "GT3" because that alphanumeric is owned by Porsche, but definitely aimed at its Stuttgart rival. AMG boss Tobias Moers told Autocar the objective for that car is "more power, less weight, better aerodynamics and different suspension but the targets should be the power to weight ratio, drivability, lap time and tremendous feel." Those targets will be aided by a carbon fiber weight-loss regime of up to 220 pounds and more power - perhaps 550 horsepower - from the currently "very understressed" engine. Supposing that still isn't enough for you, then the Black Series version should curl your toes, if you can wait until 2018 for it.