This is the inside story of the workings of the MG Design and Development Office in Abingdon, from 1956 until MG's closure in 1980, as told by Chief Design & Development Engineer, Don Hayter. This book explains how the various models were conceived, drawn, planned and developed by a small team of engineers. It also shows how the constant evolution of BMC, including the Triumph-Austin merger, frequently changed input to, and control of, the department. Safety legislation, mainly imposed by the United States, could have killed MG, but detailed here are the design changes that allowed the MGB, and other models, to survive. Trying to remain as individual as possible, MG developed record-breakers and a unique Competition Department during the period covered by this book. Special cars were built and tested, and prototypes for the MGB replacement, using engines from any part of the group, were drawn up. The continuing support of the American market was essential and much valued, but holding company, British Leyland, prioritised the TR7 a decision that, ultimately, led to the closure of a successful, happy MG company.