hi alljust like to ask.. the area below the door(where looks like side skirt.. but actually is part of the body)the place where got 2 holes we can jack our car using bmw jackis the area smooth surface?or is there version with rough surface?because i saw one car which is rough surfacei suspect is spray with bitumen (the one we spray under the car for rust proof)or i suspect is car body putty being done not well alsohope you can help me. Thanks in advance