Ault Park’s Concours d’Elegance, the nationally recognized car show, returns to Cincinnati for its 37th annual exhibit Sunday. This year’s theme, “The Art of the Automobile: Great American Design,” celebrates American autos plus 50 years of the Mustang and Microcars and the 100th anniversary of Maserati. This show highlights 13 classes of classic, vintage and exotic automobiles and motorcycles. Held in Ault Park, the cars are shown in the formal gardens and social events, like the dinner and live auction and Mustang seminar, are held the Friday and Saturday before the show. This year benefits Juvenile Arthritis.