82451 1/35 M3A1 White Scout Car Early Production. US M3A1 While Seoul Car Earlv Production - The White M3A 1 Scout Car was first produced in 1938. Trial versions included the M3A 1 E1 with a diesel engine, the M3A 1 E2 with an armored roof, and the M3A 1 E3 mounting a 37mm 146in gun on a rotating pedestal.