EARLIER SAME DAY VEHICLE OVERHEATED, IT WAS IMMED. TURNED OFF AND TOWED IN. VEHICLE WAS PARKED AND ENGINE WAS OFF AND KEY REMOVED. IT LATER CAUGHT FIRE. THE PROPER AUTHORITIES WERE CALLED TO EXTINGUISH THE FIRE AND INVESTIGATE THE SCENE. THE "HOT SPOT" OF THE FIRE WAS DETERMINED TO BE AT THE STARTER RELAY. THE VEHICLE IS A TOTAL LOSS.THE TIME OF DAY OF THE FIRE WAS APPROX. 4:30 PM. NO ONE WAS NEAR THE VEHICLE AT THE TIME.