When the performance-first Chrysler 300 letter series was discontinued in 1966, the 440 V8 replaced the 413 V8 in this "non-letter" version, and there was a mild facelift.

[12][13] For 1970, taking a cue from Oldsmobile, a Hurst 300 was offered in Spinnaker White trimmed in Satin Tan with leather interior (borrowed from the Imperial), powered by a 375 hp (280 kW) 440 cu in (7.2 L) TNT V8, as a limited edition of 485.

[15] The 300 name returned to the Chrysler line in the spring of 1979; this time based on the Cordoba coupe.

The model came with the code E58 195 hp (145 kW; 198 PS) 360 cu in (5.9 L) V8, featuring a four-barrel carburetor, a performance camshaft, and dual exhausts.

The deteriorating U.S. domestic economic conditions that led to the early 1980s recession reflected in low demand and less than 2,900 were built.