In 1990, Ford designers evaluated a number of themes for a replacement for the long-running third-generation Mustang. The notchback and hatchback body styles would be replaced with a single fastback coupe format. After departing from many of the original design cues on the third-generation models, the upcoming fourth-generation would return elements like the galloping pony in the grille, the side scoops and the tri-bar taillamps. This softer concept, known as “Bruce Jenner” wasn’t considered aggressive enough to be a Mustang. This alternative proposal to the “Bruce Jenner” design study dubbed “Rambo” was deemed too extreme for production.