 Complete the following phrase:  Despite his success with Cooper, Brabham was sure he could do better. He considered buying Cooper in partnership with Roy Salvadori and then in late 1959 he asked his friend Ron Tauranac to come to the UK and work with him, producing upgrade kits for Sunbeam Rapier and Triumph Herald road cars at his car dealership, Jack Brabham Motors, but with the long-term aim of designing racing cars. Brabham continued to drive for Cooper, but on the long flight back from the 1960 season-opening 