 Wanting to compete in the Australasian Tasman Series, Bruce approached his employers, but when team owner Charles Cooper insisted on using 1.5-litre Formula One-specification engines instead of the 2.5-litre motors permitted by the Tasman rules, Bruce decided to set up his own team to run him and his prospective Formula One teammate Timmy Mayer with custom-built Cooper cars.Bruce won the 1964 series, but Mayer was killed in practice for the final race at the Longford Circuit in Tasmania.When Bruce McLaren approached Teddy Mayer to help him with the purchase of the Zerex sports car from Roger Penske, Teddy Mayer and Bruce McLaren began discussing a business partnership resulting in Teddy Mayer buying in to Bruce McLaren Motor Racing Limited (BMMR) ultimately becoming its largest shareholder.