Rolls-Royce Motors Limited was incorporated on 25 April 1971, two and a half months after Rolls-Royce fell into receivership. Under the ownership of the receiver it began to trade in April 1971 manufacturing motor cars, diesel and petrol engines, coachwork and other items previously made by Rolls-Royce's motor car and diesel divisions and Mulliner Park Ward. It continued to take precision engineering work on sub-contracts. In June 1971 it acquired all the business and assets used by the motor car and diesel divisions of Rolls-Royce and Mulliner Park Ward. Rolls-Royce Motors' permitted uses of the various Rolls-Royce trade marks was very precisely defined.