Fixing a rear Mercury Sable bumper in your car helps you in any accident or collision. It absorbs the collision while also allowing off the exhaust tip from the car. The Mercury Sable rear bumper is finished of fiberglass or carbon fiber, ABS and plastic. You can easily find your favourite colour, style and shape Mercury Sable rear bumper for your car. The rear bumper cover is also known as aftermarket bumper. It is a strong and well - finished plastic piece that simply fastened on the lower rear area of the car.