The Genuine BMW Cover Primed Bottom (M) - 51127206835 is a part of the BMW exterior body trim. It is a primed cover that is designed to fit the bottom portion of the vehicle's body, specifically the M model. This cover is made of high-quality materials and is an authentic BMW product. It is primed and ready to be painted to match the color of the vehicle. This cover helps to protect the bottom of the vehicle from debris and other road hazards. It is a direct replacement for the original cover and is designed to fit perfectly on the vehicle.