Despite their innovation of putting the engine behind the driver, the Coopers and their chief designer, Owen Maddock, were generally resistant to developing their cars. Brabham pushed for further advances, and played a significant role in developing Cooper's highly successful 1960 T53 "lowline" car, with input from his friend Tauranac. Brabham was confident he could do better than Cooper, and in late 1959 he asked Tauranac to come to the UK and work with him, initially 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 describes Tauranac as "absolutely the only bloke I'd have gone into partnership with". Later, Brabham offered a Coventry-Climax FWE-engined version of the Herald, with and uprated suspension to match the extra power.