Ponton or pontoon styling is an automotive design genre that spanned roughly from the 1930s-1960s, when pontoon-like bodywork enclosed the full width and uninterrupted length of a car body — eliminating previously distinct running boards and articulated fenders.[1] The integrated fenders of an automobile with ponton styling may also be called pontoon fenders, and the overall trend may also be known as envelope styling. [2][3]
Now largely archaic, the term ponton describes the markedly bulbous, slab-sided configuration of postwar European cars, including those of Mercedes-Benz, Opel, Auto Union, DKW, Borgward,[4] Lancia, Fiat, Rover, Renault, and Volvo—as well as similar designs from North America and Japan, sometimes — in its most exaggerated usage — called the "bathtub" look in the U.S.[5]
The term derives from the French and German word ponton, meaning 'pontoon'.[6] The Langenscheidt German–English dictionary defines Pontonkarrosserie as "all-enveloping bodywork, straight-through side styling, slab-sided styling."[7]
The Model B-A's "envelope body," a styling feature previously incorporated in the postwar Kaiser-Frazer cars ...
The new cars featured clean lines with smooth envelope-style bodies on a lengthened 112-inch wheelbase...
Pontonkarrosserie