Thunderbirds was set during the mid-2060s, but a surprisingly high percentage of toy vehicles are seen that were common on roads a hundred years earlier (1965). Most of vehicles used in the background, generally fell into three categories: * A. Die-cast metal toys manufactured by Corgi, Dinky and Matchbox. * B. Model kits available for sale, such as Airfix, Revel, AMT and Monogram. * C. Scratch built models, made in the work shops at the Slough studio. These were larger-scale or custom designed cars for use in close-up scenes.