The M8 Greyhound was used during World War II primarily as an escort and reconnaissance vehicle. The 6 wheeled vehicle's light weight made it a maneuverable vehicle. Development of the M8 began in 1941 and it was originally planned for armor support, but was later shifted to reconnaissance. The Ford company developed a prototype in June, 1942. The Greyhound had a Hercules JXD rear mounted, water cooled engine, capable of generating 110 HP at 3000 r.p.m. The transmission had a 4 speed forward, 1 speed reverse gearbox. The six wheel configuration and engine made the Greyhound a stable vehicle with a maximum speed of 88.5 km/h and range of 563 km. The steel plated armor on the body ranged from 19mm to 32mm thick, the open topped turret had 19mm thick armor.