A diffuser integrated into the lower edge of the rear fascia provides efficient air flow out the rear of the car under floor section. (press.bmwgroup.com)
You can buy trim faux wood pieces that include bull nose caps, conversions etc in the laminate flooring section. (biggerpockets.com)
Other SEMA Show floor sections are: business services, hot rod alley; mobile electronics & technology; powersports & utility vehicles; racing & performance; restoration marketplace; restyling & car care accessories; tires, wheels & equipment (sponsored by TIA); tools & equipment; trucks, SUVs & off - road; and OEM. (sema.org)