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Paul di Resta returns to DTM with Mercedes

Some drivers manage to make the transition from one form of motor racing into another, and some run into trouble. Take Paul di Resta, for example. The promising young Scottish driver dominated Formula 3 racing in Europe in 2006, then moved over to Germany's hugely competitive DTM touring car series where he finished second in 2008, third in 2009 and first in 2010. But things didn't go as smoothly for Paul - cousin to retired Indy champion Dario Franchitti - when he moved in to Formula One with the Force India team.
In three years on the grid, he failed to score a single podium finish. Little surprise, then, that Force India opted not to renew his contract for this season. Left without a ride, di Resta is now going back to DTM with longtime supporter Mercedes-Benz, testing the new C-Class touring car today in Portugal. It's good news for Mercedes, which is celebrating 120 years in motor racing this season and, with 2005 champion Gary Paffett also on board, can now count two former champions on its DTM roster.
We wouldn't count Paul out of F1 for good, though. When he won the DTM title four years ago, he was also moonlighting as Force India's test driver, and we wouldn't be surprised to see him pull similar double-duty with the Mercedes F1 team (or another Benz-powered outfit) this year before spring-boarding back into grand prix racing in the future. At 27 years old, he may not have been the youngest driver on the grid this year, but he's still got a good few years ahead of him.

2014 Mercedes-Benz SLS AMG Black Series [w/video]

The biggest misconception about the Mercedes-Benz SLS AMG Black Series is that it's simply a higher-performing version of the SLS GT - a closer look, or better yet, a few hot laps on a high-speed racing circuit, reveals that is anything but the case.
Launched in the States in mid-2011, the standard SLS GT is a 583-horsepower, all-aluminum, gull-wing coupe with performance that positions it near the top of the exotic segment. While the AMG team at Mercedes-Benz could have left it alone, their experience with the SLS AMG GT3 race car said there was room for improvement, so they devised the SLS Black Series. The transformation from SLS GT to SLS Black Series is extensive, with no fewer than 17 different significant enhancements.
The engine mapping, crankshaft, connecting rods, valve-train, intake, exhaust and cooling are all modified and the engine's redline bumps up from 7,200 to 8,000 rpm, which pushes output of the hand-built 6.3-liter V8 to 622 horsepower. The power steering receives a new ratio, a coil-over AMG Adaptive Performance suspension is installed along with underbody braces, the track is widened, two-piece carbon-ceramic brakes replace iron rotors at each corner and a lightweight titanium exhaust is fitted beneath. The AMG Speedshift seven-speed dual-clutch gearbox is modified and an electronically controlled AMG rear differential lock ensures the power goes to the pavement. Last on the mechanical upgrades are new lightweight forged wheels (10x19 inches front and 12x20 inches rear) wrapped in special R-compound Michelin Pilot Sport Cup tires.

Mercedes-AMG GT attacks Circuit of the Americas

Mercedes-Benz is having a banner year with its Formula One team. Through 2014, the constructor has 454 championship points; ahead of its nearest competitor (Red Bull-Renault) by a margin of 182 tally marks. We're sure they can almost taste the champagne.
It's fitting then, and a little big cocky in a good way, that Mercedes has released a video of its newest sports car at an F1 venue. In this case, the car is the lovely Mercedes-AMG GT S, and the racetrack is Austin's Circuit of the Americas.
Having seen the official photo set and scratched the surface of the technical specifications earlier this week, we're excited to finally hear the thing run. As you might guess, the deployment of 503 horsepower and 479 pound-feet of torque from the twin-turbo V8 is a motivating experience. Crank up your volume, and hit that play button. (Oh, and Mercedes shot the thing in 4K, too, so those of you with expensive televisions/monitors should take heed to the settings.)