Which vehicle was NOT co-created by Mopar for performance in the 1980s?

The Dodge Diplomat was not co-created by Mopar for performance in the 1980s. During this decade, Mopar focused on performance-oriented models that catered to the muscle car and racing culture prevalent during the late 60s and 70s, though that era had begun to wane. The Dodge Challenger, Plymouth Duster, and Dodge Daytona are all vehicles that received direct performance enhancements or special editions through Mopar during this time.

The Dodge Challenger, although originally released in the early 1970s, saw a revival of interest and performance upgrades in the 1980s as car enthusiasts looked back at classic muscle cars. The Plymouth Duster also has a rich performance heritage, with Mopar offering performance parts and options during its lifespan. The Dodge Daytona, in particular, was a model focused on aerodynamics and performance, especially with its participation in racing, supported by Mopar performance enhancements.

In contrast, the Dodge Diplomat was more of a full-size sedan that catered to a different market segment, primarily aimed at fleet sales and daily driving comfort rather than the performance-oriented image that Mopar cultivated with their other models in that era. This distinction highlights why the Diplomat stands out as not being a part of Mop