A prefabricated vehicle may include a body module providing a vehicle body; a platform module having a battery and a driving wheel, and selectively fastened to the body module; a connecting portion that includes a magnetic module provided in any one of the body module and the platform module and an armature provided in a remaining one of the body module and the platform module, the connecting portion being configured such that the magnetic module and the armature face each other when the body module and the platform module are fastened to each other; and a controller connecting the body module and the platform module to each other to be easily replaceable by applying power to the magnetic module to allow the magnetic module and the armature to be connected to each other by a magnetic force.