Terrex The Terrex Infantry Carrier Vehicle ( ICV ) is an armoured fighting vehicle developed by ST Engineering and Timoney Technology Ltd , and produced under license by Turkish automaker Otokar and ST Kinetics ( a subset of ST Engineering ) as the Yavuz . It weighs an estimated 25 to 30 tonnes on an 8x8 wheeled chassis with modern armour . Multiple weapon platforms are supported , including both the remote and overhead weapons stations . Production History and Development . The Terrex started off as a private venture between Singapore Technologies Engineering and Timoney Technology , intended for export sales . The prototype Terrex AV81 armoured fighting vehicle that was exhibited for the first time at DSEi 2001 . The initial AV - 81 design utilised conventional coil springs shock absorbers but later variants have seen the introduction of hydro - pneumatic struts with real - time damping control . An electric - hybrid drive system was also developed . In mid - 2004 , one prototype and one pre - production model had been built and was evaluated throughout Asia and Europe , where the vehicle was offered for a number of emerging wheeled armoured vehicle requirements . This was further influenced by the emerging United States ' Interim Brigade Combat Team ( IBCT ) concept , which calls for the need of wheeled armoured fighting vehicles ( AFV ) as opposed to tracked AFVs . The Terrex AV - 82 was developed in 2005 equipped with a more advanced driveline and hydro - pneumatic suspension system , and a number of changes from the AV81 including a flat underbody instead of a V - shaped hull and revised rear suspension . The Singapore Armed Forces will acquire at least 135 Terrex ICVs to replace its V - 200 armoured vehicles , with all active Infantry and Guards battalions to begin training to operate from the vehicle in February 2010 . The Second Battalion , Singapore Infantry Regiment , recently acquired the Terrex as part of its shift into a motorised infantry battalion . The Indonesian Army has plans to purchase 420 units and has also expressed intent to produce the Terrex locally under license . Turkish automaker Otokar has also joined with ST Kinetics to produce the Terrex AV - 82 ( renamed Yavuz ) for the Turkish Armed Forces . Marine Personnel Carrier . In August 2012 , the U . S . Marine Corps awarded SAIC a developmental contract for the Terrex for the Marine Personnel Carrier program . In June 2013 , the Marine Corps put development of the Marine Personnel Carrier on hold . On 18 July 2013 , SAIC , along with ST Kinetics and Armatec Survivability Corporation , successfully completed two weeks of evaluations for the Terrex at Camp Pendleton . The tests included a series of water performance demonstrations in various sea conditions and an evaluation of human factors and stowage capacity . The Terrex completed all required surf transit and ocean swim maneuverability tests at its fully loaded combat weight . It demonstrated load capabilities through successful stowage of gear and supplies that Marines would require for three days of operations , with space available for additional equipment . The human factors evaluation demonstrated the spacious interior by accommodating the specified number of combat - equipped Marines and enabling rapid tactical and emergency egress through a quick - release hatch . The Terrex repeated ocean swim and maneuverability results achieved in a March 2013 rehearsal event . SAIC began ballistic and blast tests at the Nevada Automotive Test Center in May 2013 , and is scheduled to complete all ballistic and mine blast demonstrations in July . The Marines are to deliver a final report in September 2013 . Design . As with a number of other recent wheeled armoured vehicles , the Terrex is of modular design with various levels of armour protection and weapon systems being marketed up to a gross vehicle weight of 24 , 000 kg . Along with its size , the Terrex is air portable by C - 130 s or other similar cargo aircraft . The Terrex ' s layout is conventional : the driver sits front left and the power pack is to the right . This leaves the rest of the vehicle clear for the troop compartment , which is provided with a power - operated ramp and roof hatches . Various weapon systems can be fitted on the roof , including a remote weapon station armed with a 40mm automatic grenade launcher and a 7 . 62mm coaxial machine gun or a complete stabilized turret armed with a 25mm M242 Bushmaster cannon and 7 . 62mm coaxial machine gun . Additional 7 . 62mm machine guns can be mounted over the rear troop compartment . In addition , the vehicle can be configured to carry varying combat payloads - from turreted weapon stations ( including 105 mm tank guns ) to rocket launcher s . The modular top deck allows for quick configuration change . The Terrex AV - 81 uses a patented independent double wishbone suspension , which greatly improves ground mobility and ride comfort over the roughest terrain . The use of automatic traction control and the capacity for large footprint off - road tires enables it to traverse at unprecedented speeds in soft ground conditions . The vehicle has a double hull with an external V - hull that improves mine blast survivability . Add - on armour provides further protection for troops . It is also capable of providing full Nuclear , Biological and Chemical protection in extreme operational conditions . Standard equipment includes powered steering on the front four wheels , central tyre - pressure inflation system , anti - lock braking system and nuclear , biological and chemical defensive system , but there are numerous other options . In its baseline configuration , the AV - 81 Terrex is fully amphibious : two water jets mounted on either side at the back of the hull propel the vehicle through water at 10 km / h . Variants . The following are known variants made in service :