while the advanced tread design reduces rolling resistance to improve fuel efficiency

The element is the most presentable added to side skirts

Tesla Model Y spoiler made of real carbon fiber

along with some CFD data from Simon

Street pro front splitter audi a7 rs7 look c7 Audi A38P while the advanced tread designStreet Pro Front Splitter Audi A7 RS7 Look C7 fits: Audi A7 RS7 Look C7 2010 2014 Complete set includes: Street Pro Front Splitter Assembly kit Street Pro elements are characterized by: More durable material, 10 mm thick ABS plastic plate Withstands more impact and scratch damage Lack of metal elements prevents any corrosion of the part New design with stylish edge finish UV protective coating Resistant to weather and wind, withstands high and low