suspension units. The V-150's hull was also designed specifically to carry heavier weapons systems, such as large smoothbore guns for fire support and anti-tank purposes. In the 1980s Portugal updated its Chaimites (originally built between 1967 and 1974) with a 90 mm turret (V-400), but the Portuguese Army also bought 15 examples of the U.S.-made V-150 Commando. The Philippine Army continue to use their V-150s in 2017, when several photos appeared on social media of a vehicle with heavy wooden planks and flattened ammunition crates were applied as improvised armour against ISIL insurgents in the southern islands. The effectiveness of the improvised vehicle armour against proper rocket-propelled grenades is doubtful, but it has been judged to reduce some of the RPG's damage. HMV-150 The HMV-150 is a modernized and upgraded variant of the V-150 created by Thailand in 2017. Locally designed by Panus Assembly, the HMV-150 has a new design to respond to new threats and especially to offer more protection against mines and IEDs. The internal layout of the vehicle is also modified to offer more internal space, giving a capacity to carry up to ten military personnel. The original V-150 only had the capacity to transport five people. The vehicle is fitted with a new 8.9 liter Cummins ISL engine Euro 3 developing 350 hp. coupled to a new Allison 4500 automatic transmission with six gears. The HMV-150 can achieve a maximum road speed of . An unknown amount of HMV-150s have been delivered. Currently they are being operated by the Royal Thai Armed Forces, most especially the Royal Thai Navy and the Royal Thai Marine Corps. V-200 The V-200 was essentially an enlarged version of the V-100 and utilized many components of the U.S. Army's 5-ton trucks. This version was designed to the specifications of the Singapore Armed Forces (SAF) and entered service in 1968. It was fitted with a custom diesel engine and was notably heavier than the V-100. ST Kinetics upgraded the Singaporean fleet of V-200 vehicles in 2002 with electric turret drives and made some detail improvements to both the engine and transmission. The Singapore Army continued to hold two hundred V-200s in reserve until 2015, when they were formally retired and replaced by the Peacekeeper Protected Response Vehicle (PRV). Fifty V-200s were operated by the Republic of Singapore Air Force for on-base security and equipped with Swedish-manufactured RBS 70 surface to air missiles