Viper is an action-adventure TV series about a special task force set up by the federal government to fight crime in the fictional city of Metro City, California that is perpetually under siege from one crime wave after another. The weapon used by this task force is an assault vehicle that masquerades as a Dodge/Chrysler Viper RT/10 roadster and coupe (later, the ViperGTS replaced the RT/10). The series takes place in, "the near future". The primary brand of vehicles driven in the show were Chrysler or subsidiary companies. The Viper Defender "star car" was designed by Chrysler Corporation engineers (unlike most Hollywood Film/TV cars that are usually customized by film picture designers like George Barris). The exterior design of the car was produced by Chrysler stylist Steve Ferrerio.