UNBRIDLED: The Passion, Performance & Politics Behind America’s Favorite Pony Car examines the lineage of Ford’s famed filly from Henry Ford’s Quadricycle through the new Dark Horse and Mustang GTD. It delves deep into the internal and external economics and politics that have affected every generation of Mustang. It chronicles the design, engineering, manufacturing, and marketing of regular and limited-production models. And it highlights the marque’s most memorable racing exploits.