The Dodge 400 was Dodge's second K-car in the early 1980s. It was similar to the Chrysler LeBaron of the same era. The 400 was introduced for the 1982 model year, yet was renamed and added to the midsize Dodge 600 lineup just two years later.
The 400 was intended to be a more upmarket version of the Aries. It was available in three bodystyles: two-door coupe or convertible and a four-door sedan.
This was Dodge's first convertible since the 1971 Challenger and the first domestically-manufactured convertible since 1976, when Cadillac had phased out the Eldorado convertible.
Chrysler's chairman Lee Iacocca believed he could revive interest in convertibles, which at the time were no longer part of any major manufacturer's range, except Volkswagen.
The 400 was available in two trim levels: base and LS. Engine choices were limited to a 2.2 L I4 engine or an optional Mitsubishi-sourced 2.6 L "Silent Shaft" 4-cylinder. The convertible came with the Mitsubishi-sourced engine as standard.
31,449 vehicles were produced.
There were no major changes made for 1983 other than the LS trim being omitted from the lineup. Production figures for 1983 were 25,952 vehicles.
During 1983, the 400 sedan was replaced by the Dodge 600. The coupes and convertibles were rebadged as Dodge 600 from 1984.