Bus design has certainly evolved in the seven decades since 1950, but it has not been a steady process. Advances in bus design have caused manufacturers to rush back to the drawing board for fear of being left behind. In 1950, the first of the new breed of underfloor-engined single-deckers appeared, and, just six years later, came the first rear-engined double-decker. Buses got longer, and one result in the 1960s was a rash of new rear-engined single-deck models. Efforts to make buses accessible for all passengers led to low-floor models in the 1990s, and then, in the 2000s, concerns about the environment prompted diesel-electric hybrid, gas, electric and hydrogen buses. Covering the designs that led the way with varying degrees of success over the past 70 years, and illustrated with over 170 colour images and period advertisements, this book showcases the good, the bad and the ugly of British bus design.