The GZ 550 is a heavy 4x4 jeep manufactured by Republic Motors. It is a lightly armored multipurpose vehicle used for fast reconnaissance much like the Humvee.
The S.T.A.R.S. division of the Brotherhood of Steel is the only known operator of these vehicles to date. The unit has three GZ 550s, two in scout configuration doubling as personal ground transports, and one command car. The gun turret can mount an M60, M2, M240, or a MG42 machine gun or can be left unmounted to serve as a personnel shield.
With a diesel-electric hybrid engine, the vehicle can generate enough horsepower to haul a boat.