What car manufacturer introduced the first muscle car in 1964 with the release of the GTO? Beaconsfield, UK - June 26, 2019: A scale model of a Pontiac GTO in an old garage setting. The model car is sitting in an atmospherically-lit industrial garage environment. The garage environment/model is made out of fibre-board, and was photographed in my studio in Beaconsfield. There is no one in the photograph.