Mopar is a generic term for cars made by Chrysler (now 'Daimler-Chrysler'), that includes Dodge, De Soto, Eagle, Imperial, Jeep and Plymouth brands (plus the cars manufactured by Shelby Automobiles in Whittier, CA; from 1986 to 1989) ... Chrysler also bought the AMC company, although they never produced any cars badged as such.

 The name comes from Chrysler's brand name for replacements parts, literally short for 'Motor Parts'.  Today 'Mopar Performance' make factory approved go-faster parts.

Fans of Mopar cars tend to be fanatical due to the car's character, which many find lacking in other brands - their engineering and design tends to be easily identified, and they're most often picked for movie car roles (like Vanishing Point, 2 Fast 2 Furious, Christine, The Wraith or Bullitt).