Some cars are so beautifully designed and exquisitely engineered that they transcend mere transportation to become works of art. They are rolling sculptures, and to see them is to think, “That car belongs in a gallery.” Curators at the High Museum of Art in Atlanta agree. The museum is hosting an exhibition to celebrate automotive design, and it has gathered a very impressive assortment of cars. The Allure of the Automobile, which opens Sunday and runs through June 20, features 18 vehicles created in what could be called the golden age of design, from the early 1930s through the early 1960s. The vehicles range from a 1933 Pierce Silver Arrow...