Busscar Ônibus S.A. was a Brazilian bus manufacturer that built coaches, trolleybuses, charter buses, and tour buses, founded on 17 September 1946. The company was based in Joinville in the south of Brazil, where it had industrial premises that covered 1,000,000 m2 (11,000,000 sq ft). Busscar went defunct on 27 September 2012.

A trolleybus is an electric bus that draws power from dual overhead wires using spring-loaded trolley poles. Two wires, and two trolley poles, are required to complete the electrical circuit. This differs from a tram or streetcar, which normally uses the track as the return path, needing only one wire and one pole. They are also distinct from other kinds of electric buses, which usually rely on batteries. Power is most commonly supplied as 600-volt direct current, but there are exceptions.