The contact owns a 2005 Mini Coop S Hardtop. The contact stated that while the vehicle was parked and unoccupied, the vehicle alarm activated inadvertently and the contact noticed smoke coming from underneath the hood. The contact stated that he lifted the hood open and noticed fire coming from underneath the engine. The contact extinguished the fire with a fire extinguisher. There were no injuries sustained. The vehicle was towed to an independent mechanic; however, the vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 160,000.