The first Dodge Darts, introduced for the 1960 model year, were reduced-size large cars developed to replace the Plymouth as the low-priced car for the Dodge dealer network; Dodge dealers had been selling Plymouths since 1930, but divisional restructuring in 1960 took Plymouth away from the Dodge dealer network. The Dart had a shorter wheelbase than the standard-size Dodge line, and was based on the Plymouth platform. The Dart line was divided into three trim levels: the basic Seneca, the mid-range Pioneer, and the premium Phoenix. The all-new Dart came with an all-new engine as standard equipment: the 225 cu in (3.7 L) Slant-6. 318 cu in (5.2 L) and 361 cu in (5.9 L) V8s were also available with 2bbl or 4bbl carburetors, and with single or dual exhaust. read more on wikipedia.
(source : wikipedia)