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Aston Martin signs Letter of Intent for technical partnership with AMG

A little over two months ago came reports that Daimler and Aston Martin were in talks, again, about "supply and technical-cooperation agreements." The next step has been taken with Aston Martin announcing that it has signed a Letter of Intent that looks "towards a technical partnership" with Mercedes-AMG GmbH, and the two companies aiming to have definitive agreements done by year's end.
While it will get to use certain electric and electronic components from AMG, the true golden egg for the maker of the Vanquish will be the ability to develop a new line of "bespoke V8 powertrains" that will be fitted to "a new generation of models." In return for opening up the larder, Daimler will get a non-voting stake of up to five percent of Aston Martin.
Nothing else is being said about the tie-up for the moment, but there's a press release below with a few more details.

2013 Mercedes-Benz SLS AMG GT Coupe

Mercedes-Benz upgraded its SLS flagship Coupe and Roadster for the 2013 model year, and the changes are marked with them new "GT" nomenclature. Both SLS models arrive with a retuned naturally aspired 6.2-liter V8 delivering 583 horsepower and 479 pound-feet of torque (the horses are up from 563, but the torque remains the same) mated to a revised seven-speed AMG Speedshift dual-clutch gearbox. Rounding out the mechanical upgrades is a redeveloped AMG two-mode adaptive suspension. Physically, the revised models are differentiated by their new "GT" badging, darkened headlight/taillight buckets, red brake calipers, unique wheel colors and high gloss finish on the front grille, exterior mirrors and hood/fender fins. Inside the cabin are new red seatbelts, Alcantara upholstery and contrasting red stitching.
As it is nearly impossible to experience the aluminum gullwing beast on public roads, Mercedes invited out to Southern California's Willow Springs to wring out the 2013 SLS GT Coupe on a racing circuit.

SRT Viper dukes it out with Mercedes SLS Black Series in new Head 2 Head

In Episode 36 of Motor Trend's Head 2 Head, now that the Corvette ZR1 is no more, Jonny Lieberman has to look overseas to the Mercedes-Benz SLS AMG Black Series for a challenger with similar philosophy to the SRT Viper: long hood hiding a high-horsepower engine set way back, rear-wheel drive, tiny trunks. That puts the Viper's 8.4-liter V10 with 640 horsepower and 600 pound-feet of torque against the SLS AMG's 6.2-liter V8 with 622 hp and 468 lb-ft.
However, the congruences in philosophy and magnitude of numbers doesn't translate to the driving experiences of the two, which are literally and figuratively on different continents. Lieberman gets a handle on the two of them on Northern California roads, Randy Probst then finds out how, and how quickly, they can lap Laguna Seca.
They both get kudos for being improvements on their original sources, but only one of them can take the win. You can find out by watching the video below.