Following the introduction of the medium-duty Business Class, Freightliner saw further evolution to its model range. For 1996, the company introduced the Freightliner Century Class, its first completely new Class 8 conventional in over 20 years. A year later, the company began production of cowled bus chassis, with the FS-65 derived from the medium-duty Business Class. For 1999 production, the Freightliner Argosy debuted; directly replacing the FLB, the Argosy consolidated four previous Freightliner COEs into a single model range. The first clean-sheet COE design from Freightliner since the Daimler acquisition, the Argosy largely eliminated the engine intrusion into the cab, sharing many body components and electronics with the Century Class conventional.