Encontrei estes dois modelos comerciais da Mazda. Embora tenham nomes diferentes, julgo que um deriva do outro. É uma questão de pesquisa. Por agora fica lançado o tópico.
Fonte: Página do Facebook da Mazda
"Mazda introduces the D1100, a four-wheeled truck powered by an advanced 46-hp DHV four-cylinder engine. It was the most powerful one-ton truck on the road until the 60-hp D1500 debuted later that year."
"Mazda introduces the Romper, a four-wheeled, one-ton-rated light truck, powered by a water-cooled 32-hp two-cylinder engine."
