Beneath the Dart exterior and trim, everything else is interchangeable with either the 1960 Dodge or Plymouth. The wheelbase matches Plymouth at 118 inches, as compared to Dodge’s 122 inches.

The Dart first appeared in the 1960 model year as a full-size car, although slightly smaller than the similarly-styled Matador and Polara series. (Think ‘88 vs. ‘98 Oldsmobile.) ...

Chrysler Corporation decoupled its Dodge- Plymouth dealerships into the 1960 model year, which also was the penultimate year for DeSoto. Here's how it has used the Dart name, so far.