The M8 Greyhound was originally designed to replace the US military's portee gun in an anti-tank role, but was quickly repurposed once it was realised that its performance against German armour was lacking. It found use as a popular and successful armoured car that served American and British armies well throughout the war.

Replacing the armoured turret for a fixed, open fighting compartment, the M20 scout car was used primarily as a command vehicle, sacrificing the turrets main gun in favour of extra radio capability, it also carried a portable Bazooka for extra anti-armour firepower.