M3 VTT (French: Véhicule de Transport de Troupes) is an amphibious armoured personnel carrier. M3 was built with the same mechanical and chassis components as the Panhard AML range of light armoured cars ( share a 95% inter-changeability of automotive parts). The M3 is an extremely versatile design which can be configured for a wide variety of auxiliary battlefield roles. The most popular variants of the base APC included an armoured ambulance, a mobile command post, and an internal security vehicle. It could also be fitted with a wide variety of turrets and armament.