and fitted the body from one of them to a prototype P4 chassis to create a development mule. James Taylor's book 'Rover P4 - The Complete Story' says that this vehicle was affectionately known as the 'Roverbaker' hybrid.

Malcolm Bobbit states "The P4 set the seal on the future with a vengeance. Rover defied its critics with the P4's new look and to get some idea of the shock of the new, consider some of its rivals ... astonishment at the P4's courageous styling." The P3 had almost no boot at all