This is inspired by the American workhorse of the entire country during the late 20's and 30's, the hugely successful Ford Model AA, itself a variation of the iconic Model A. 

The toy itself has the yellow and black herringbone pattern on the front radiator, a long bed to haul other toys, and a magnet "hitch" making sure the towed cars stay in place. 

Material
Solid Beech wood, water based paint and clear urethane coat. ABS plastic rims, with food grade rubber tires. Safety tested according to US CPSIA and European, Australian and New Zealand regulations.