These models were probably inspired by the sporty cars produced in the 1920s and 1930s in the British Commonwealth. Some of these cars bear a resemblance to MG, Fraser-Nash, Jaguar and other popular models, which appeared later in the United States.
The three different Constructor outfits contained metal parts that could be used to build sporty cars in a variety of different body styles and color schemes. There were two different sizes; the smaller ones shown here are about 1/20 full size, and the larger ones are about 1/15 full size. The cars all had working steering and most of them had clockwork motors. Some models were also available assembled.