Track Maintenance Trolley

Small motorised permanent-way trolley about 3.2 m long that carries a track gang, entirely open and low, like a powered flat wagon with seats: a flat timber plank deck on four flanged wheels, no cab and no roof of any kind over the driver or the gang.

风格：low-poly, flat-shaded vertex colors, no textures, single shared material, so any set of these merges to one draw call; shares palette and scale with its kit