Dave Gano, 62, chief executive of TruCut Inc. from Salem, Ohio, on his 1931 Cadillac limo: Cars can be remarkable time capsules. In the 1920s—an era of unparalleled Wall Street success—companies like ...

Pictured is the 1930 Cadillac V16 452-A Roadster. During the 1920s Cadillac fought to catch up to the Packard. At a time when the economy was comfortable, luxury cars became bigger and heavier and ...