Radios were fitted to many vehicles during WW2, the smallest being the Austin seven. This was a very lightweight vehicle, with good off road capabilities. The disadvantages of the little Austin was its small size, limited weight carrying capacity and the lack of four wheel drive. When the Willys Jeeps became widely available in 1942, it was the perfect vehicle for reconnaissance. When fitted with a radio, the Jeeps with their low profile could get very close to the enemy without being spotted.
British Jeep fitted with a British 22 radio set
Jeep fitted with American radio set
An interesting radio set in a Willys Jeep
Radio Jeep operating on an Airfield, during WW2
British Troops using the radio on an airborne Jeep
A group of WW2 Radio Jeeps