The Plymouth Sundance was sold alongside the Dodge Shadow since the 1987 model year.
Starting off with the 1991 model year were four trim levels: America, Highline, RS and RS Turbo.
The RS trim level is replaced by the Duster.
The America and Highline models were gone, and the base model returned for the rest of the Sundance's run in the market.
Not much changes, as the Sundance (as well as the Shadow) ended production on March 9, 1994, having already been replaced by the Dodge/Plymouth Neon.