(Reuters) - A fire department in Southern California said a garage fire may have been caused by an overheated charging system in a Tesla Model S sedan, in the latest link between the top selling electric car and the potential for fire. While Tesla Motors Inc maintains that the fire was not related to the car or its charging system, the Orange County Fire Authority said the Tesla-supplied charging system or the connection at the electricity panel on the wall of the garage of a single-family home could have caused the fire. "The fire occurred as a result of an...