Aston Martin and AMG have signed a letter of intent for cooperation--mostly seeing Aston Martin gaining access to AMG's stable of high-power engines. Will this mark a new direction for Aston?

The 2015 Mercedes-Benz S Class Coupe has been spied several times before, but the latest images comes straight from the Mercedes-Benz USA chief Steve Cannon during testing in Death Valley.

Corvette's new Stingray will get a GT3 racing version built to FIA standards soon, but it will be built by the German branch of Callaway. How will the C7 Corvette hang in international GT competition? We'll find out next year.

You'll find all of these stories and more in today's car news headlines from around the High Gear Media network, right here at Motor Authority.

Aston Martin Forms Alliance With Mercedes’ AMG Division: Official

2015 Mercedes-Benz S-Class Coupe Spy Shots (With Interior)

Callaway’s German Arm To Build Corvette Stingray GT3 Race Car

2015 Audi A8 Spy Shots

2015 McLaren P13 Spy Shots

Mercedes-Benz Releases Details On 9G-TRONIC Nine-Speed Auto

Plug-In Electric Car Buyers Very Satisfied With Cars: Report

Electric Cars Sell Faster Than Hybrids Did At Same Point

New In Safety: Ford 'Surveillance Mode' Locks Car Doors When People Approach

Ford Sells More Hybrids Than Ever, Dissolves Tech Partnership With Toyota