A scratch resistant and mar abrasion resistant thermoplastic polyolefin blend that includes at least one semi-crystalline polypropylene resin component, at least one styrene-based elastomer component, at least one vinyl cyanide component, and at least one processability modifier component. The processability modifier component contains at least one pair of oxygen atoms bonded by a single covalent bond, and is present in an amount sufficient to provide an amount active oxygen of about 4 to 500 parts per million (ppm) of the thermoplastic polyolefin blend.