A Versatile Design The M8 "Greyhound" ended up being an important cog into the WWII U.S. armed forces device, a fast light armored car with an open top turret and 37mm weapon that may fire a range of different rounds. Some vehicles also had an extra band mount. Possessing a rear mounted 110hp gas engine and six-wheel drive, this mobile automobile could reach rates all the way to 88.5km/h. 8,500 had been produced between March 1943 and April 1944, & most had been active in mechanized units inside European theater, some supplied towards the Free French Forces and other Allied nations such as Great Britain, as well as other countries following the cessation of hostilities.