The somewhat related Eagle Summit Wagon (a compact MPV) was marketed from 1992 through 1996 and was based on the Mitsubishi RVR.

In a pairing of the Japanese-built Mitsubishi Mirage and the identical Eagle Summit to test if Lee Iacocca's theory was true regarding the preference of a Japanese to an American brand on similar cars, Popular Mechanics found that American consumers were "not sold on Japanese cars.

Starting with the 1991 model year, the Eagle Summits were also built by Diamond-Star Motors (DSM), a joint-venture between Chrysler and Mitsubishi, in Normal, Illinois.

[14] The Summit was now based the fourth generation Mitsubishi Mirage 'CC' chassis platform featuring a multilink rear suspension and the body was given a rounder shape.

The hatchback body design was dropped in favor of a two-door coupe version, while a four-door sedan joined the Summit lineup.