GM Defense

GM Defense is the military product division of General Motors focusing on the defense industry needs with hydrogen fuel cell and other advanced mobility technologies.GM Defense projects include SURUS (Silent Utility Rover Universal Superstructure) an autonomous modular platform joint project with the United States Army.
ZH2 are modified Chevrolet medium and full size pickups modified for military needs. The ZH2, fitted with a hydrogen fuel cell and electric drive, has a stealthy drive system which produces a very low smoke, noise, odor and thermal signature. This allows soldiers to conduct silent watch and silent mobility missions on the battlefield. 
General Motors, the Office of Naval Research and the U.S. Naval Research Laboratory are cooperating to incorporate automotive hydrogen fuel cell systems into the next generation of Navy unmanned undersea vehicles, or UUVs. Hydrogen fuel cell technology could augment ships and subs on patrol.
History.
The original GM Defense was founded in 1950, and acquired by General Dynamics in 2003. This later became part of the General Dynamics Land Systems division.
In 2017, General Motors announced they were "Going Back Into the Defense Business".
Previous Products.
Products produced by GM Defense in past include:
With the sale to General Dynamics, only the Stryker product lines are still in production. The M54 truck is no longer in production. MILCOT is being developed under General Motors Truck division for the US Army's COMBATT program.