The first five motorized GRDI each have an anti-tank platoon equipped with Renault AMR-35 ZT-2 and AMR-35 ZT-3 armored cars. Only ten of each of these odd little two-man vehicles were built. They mount the same 25mm SA-35 gun as the Panhard AMD-35.

The ZT-2 mounts its gun in an extremely cramped turret on a standard AMR-35 hull, while the ZT-3 has its gun mounted as a self-propelled gun in a raised casemate.

The two vehicles operate in pairs. The low, turretless ZT-3 uses its small silhouette to work its way into a good ambush position. Meanwhile the larger, turreted ZT-2 stays further back in cover to protect its flanks.

With easily the best gun in the GRDI (Groupes de Reconnaissance de Division d’Infanterie) reconnaissance battalion, the AMR ZT-2 and ZT-3 give the reconnaissance a serious anti-tank capability.