Audi’s next three concept cars—the Skysphere just unveiled, and the Grand Sphere and Urban Sphere waiting their turn, outline Audi’s strategy regarding autonomy and BEV architecture. The Skysphere, they say, is inspired by 1930s cars, particularly the Horsch 853A. Using classical 1930s proportions but without the cumbersome drivetrain, the Skysphere incorporates two unique features only…