A method for the diagnostic assessment of the wheel alignment of a vehicle equipped with wheels having tyres coupled to respective rims, comprising the following steps: - in a longitudinal movement of the vehicle in a forward travel direction with at least one of the wheels positioned in contact with a longitudinal track, until the wheel surmounts a measuring platform located along the track, acquiring a forward travel measurement signal, representing a lateral force applied to the platform and directed transversely to both the longitudinal direction and the weight force at a forward travel instant at which the wheel surmounts the measuring platform as it moves along the track in the forward travel direction; characterized in that it comprises the following steps: - in a longitudinal movement of the vehicle in a return travel direction opposite to the forward travel direction with the wheel positioned in contact with the longitudinal track, until the wheel surmounts the measuring platform, acquiring a return travel measurement signal, representing a lateral force applied to the platform and directed transversely at a return travel instant at which the wheel surmounts the measuring platform as it moves along the track in the return travel direction; - processing the forward and return measurement signals and determining, for the wheel, at least an angle of camber; - obtaining at least one weight force value, representing a weight force applied by the vehicle, wherein the forward and return travel measurement signals are processed as a function of the at least one weight force value, wherein the step of obtaining at least one weight force value is carried out by measuring, with at least one force sensor, a weight force applied on the measuring platform when the wheel passes over the platform. - in a longitudinal movement of the vehicle in a forward travel direction with at least one of the wheels positioned in contact with a longitudinal track, until the wheel surmounts a measuring platform located along the track, acquiring a forward travel measurement signal, representing a lateral force applied to the platform and directed transversely to both the longitudinal direction and the weight force at a forward travel instant at which the wheel surmounts the measuring platform as it moves along the track in the forward travel direction; - in a longitudinal movement of the vehicle in a return travel direction opposite to the forward travel direction with the wheel positioned in contact with the longitudinal track, until the wheel surmounts the measuring platform, acquiring a return travel measurement signal, representing a lateral force applied to the platform and directed transversely at a return travel instant at which the wheel surmounts the measuring platform as it moves along the track in the return travel direction; - processing the forward and return measurement signals and determining, for the wheel, at least an angle of camber; - obtaining at least one weight force value, representing a weight force applied by the vehicle, wherein the forward and return travel measurement signals are processed as a function of the at least one weight force value, wherein the step of obtaining at least one weight force value is carried out by measuring, with at least one force sensor, a weight force applied on the measuring platform when the wheel passes over the platform.