Abstract: An in-wheel electric all-terrain vehicle (100) having a powertrain (126) to provide power drive from the engine (102) to at least one of the right front wheel (104), the left front wheel (106), the right rear wheel (108), and the left rear wheel (110), wherein the powertrain (126) includes the engine (102), one or more drive shafts (128), and a final drive (130); an electric in-wheel motor assembly (132) mounted inside each of the four wheels (104, 106, 108, 110), wherein the electric in-wheel motor assembly (132) includes a main shaft (134), one or more stator coils (136), a stator holder (138), a stator coil winding (140), one or more magnets (142), a magnet ring holder (144), one or more bearings (146), a casing (148), one or more internal and external circlips (150).