The Puma Clubman sports car was conceived and designed by John Karnon and Neville Darwin in Adelaide, Australia based on Ron Champion's book Build your own sports car for as little as £250 - and race it (ISBN 1-85960-636-9). Between 1998 and April 2014, John Karnon constructed 54 chassis and of those 30 have been completed and registered for road use. John Karnon has continued to develop the Puma chassis design to make use of more modern available donor parts.