Passage: The Mazda Nagare is a celebration of proportions and surface language according to its designers.  Its bodylines flow like liquid across its smooth seamless design and there are no distinguishing marks that detract from the overall theme of the car.  It has a large windshield that rakes at a very steep angle molding itself into the glass roof of the car.  Its large and aggressive wheels are wrapped into the wheel wells, incorporating them as a part of the body.

Question: What issue could potentially detract from a car's theme?
distinguishing marks