Ground Mobility Vehicle – (US)SOCOM program
The Ground Mobility Vehicle (GMV) is a U.S. Special Operations Command, (US)SOCOM program, initially modifying Humvees into several variants for use by the United States special operations forces (SOF). Its design is mostly based on lessons learned during Operation Desert Storm, after an initial program, post 1985, for specialized HMMWVs for desert strike operations: the Desert Mobility Vehicle (DMV), or "Dumvee".
The GMV program is superseded by the GMV 1.1, based on the General Dynamics Flyer 72. It is understood that under a seven-year indefinite delivery / indefinite-quantity (ID/IQ) contract (August 2013–August 2020), SOCOM wishes to procure 1,297 GMV 1.1s — to replace its 1,072 first generation, Humvee-based GMV units.
Early models were based on the M1025 Humvee chassis. Later models of GMVs included versions based on the M1113 chassis. Another model based on the M1165 HMMWV can be fitted with armor kits to create an 'up-armored' GMV with additional armor plating and an optional ballistic shield around the top gunner's turret. Variants are: 
- GMV-S - US Army Special Forces
- GMV-R - 75th Ranger Regiment
- GMV-N - Navy SEALs
- GMV-T / GMV-SD / GMV-ST - Air Force Special Operations Command (AFSOC)
- GMV-M - Marine Corps Special Operations Command (MARSOC)
Improvements over pre-existing HMMWVs include:
- More rugged tires
- Heavier suspension, resulting in
- Improved ground clearance
- increased payload capacity to 2½ tons (unarmored M998 / M1025 GMVs) 
- More powerful engine
- extra fuel tanks that triple the vehicle’s range
- added bustle racks for ammunition, fuel, and water
- internal fire suppression system
- multiple smoke-grenade launchers
- Open bed for improved storage and access
- Winch for towing other vehicles (up to 4,200 pounds)
- GPS navigation
The GMV has a cruising range of 275 miles for operations behind enemy lines with only occasional resupply. GMVs feature an open rear, where an enclosed cabin would normally be. This flat bed area is used to store all the fuel, ammunition, rations and other supplies that the mission requires.
- M2 .50 machine guns
- M240 machine guns
- Mk 19 or Mk 47 40mm grenade launchers
- M249 machine guns
- Smoke grenade launchers
In June 2012, the United States Special Operations Command requested proposals for a new, better GMV, version 1.1. By contrast to converted Humvees, the vehicle needed to be lighter, faster, more easily transportable by air, sea, and land, and contain next generation communications and computing equipment. The vehicle was expected to be selected by the end of 2012, with production beginning in 2013. 1,300 of the new vehicles are to be in service by 2020. Vehicles entered were the Northrop Grumman Medium Assault Vehicle – Light (MAV-L), AM General's reengineered GMV design, HDT Global's Storm SRTV, the Oshkosh Special Purpose All-Terrain Vehicle (S-ATV), the Navistar Special Operations Tactical Vehicle (SOTV), and General Dynamics Flyer. The winner was expected to be selected in May 2013. The decision for the winner was delayed until August 2013 to work through processes in dealing with vendors. The remaining contenders included the AM General upgraded GMV, the General Dynamics Flyer, and the Navistar SOTV. On 22 August 2013, General Dynamics was selected as the winner of the contract, potentially valued at $562 million. The vehicle will replace 1,092 GMVs, with funds to buy the first 101 in FY 2014 at $245,000 per vehicle.
In September 2013, AM General and Navistar filed protests over the decision to award the contract to General Dynamics. On December 19, 2013, the Government Accountability Office (GAO) denied Navistar and AM General's protests. On January 7, 2014, AM General sued the U.S. Special Operations Command in the Court of Federal Claims. The complaint from the case was sealed, with AM General indicating the suit contained "secret, source selection sensitive, confidential or other proprietary information" covered by a protective order issued by the GAO, with a proposed redacted version of the complaint for public release yet to be approved by the court. On 7 April 2014, the US Federal Claims Court rejected AM General's lawsuit, allowing General Dynamics to resume work and continue with the contract.
- "GMV - Ground Mobility Vehicle - Special Operations Vehicles". Americanspecialops.com. Retrieved 10 January 2018.
- Neville (2011), pp. 5–6, 16.
- Special Operations Vehicles Family — Special Operations Vehicles Industry Conference, 2018
- Briefing: Wheels of the elite – Jane's Defense Weekly
- USSOCOM Ground Mobility Vehicle – GlobalSecurity.org, 27-10-2018
- Neville (2011), p. 16.
- "SNAFU!: Ground Mobility Vehicle contestants so far..." Snafu-solomon.blogspot.com. 16 June 2012. Retrieved 10 January 2018.
- Truck Makers Gear Up for Special Operations Light Vehicle Competition - Nationaldefensemagazine.com, October 26, 2012
- SOCOM may pick truck winner in May - DoDBuzz.com, March 28, 2013
- Special Operations Truck Contract Delayed - Nationaldefensemagazine.com, May 17, 2013
- "U.S. DEPARTMENT OF DEFENSE > Designer Test > News". Defense.gov. Retrieved 10 January 2018.
- "General Dynamics Wins $562 Million SOCOM Truck Deal". Dodbuzz.com. 22 August 2013. Retrieved 10 January 2018.
- Special Ops Command Announces $560M Award for Critical New Vehicle - Defensenews.com, 22 August 2013
- AM General and Navistar Protest SOCOM Vehicle Contract - Defensenews.com, 4 September 2013
- "Humvee Maker Protests $562M DOD Vehicle Contract Award". Law360.com. Retrieved 10 January 2018.
- AM General Lawsuit Against SOCOM Rejected; GD Starts Work on Special Ops Vehicle - Defensenews.com, 9 April 2014
- Neville, Leigh (2011). Special Operations Patrol Vehicles: Afghanistan and Iraq. New Vanguard: 179. illustrated by Richard Chasemore. Oxford (UK): Osprey Publishing. ISBN 9781849081870.