Jan 30 (Reuters) - General Motor Co's defense arm and American Rheinmetall Vehicles said on Monday that they have won a contract for the first phase of the U.S. Army's Common Tactical Truck Program (CTT).

The multi-phased program aims to replace the army's family of heavy tactical trucks with the production of up to 40,000 trucks valued at up to $14 billion.

Under the contract, the companies will provide their HX3 Common Tactical Truck, which will support advanced driver assistance systems (ADAS) and are enabled for autonomous vehicle operation. (Reporting by Nathan Gomes in Bengaluru; Editing by Anil D'Silva)