Career
Mildren began his racing career in an Austin in 1938 and then raced a variety of cars including a Singer, a Ford Special, an MG Tuberculosis and two Rileys. These were followed by a series of Coopers, with Mildren placing second in both the 1958 and 1959 Australian Drivers" Championships. A Maserati powered Cooper T51 was campaigned during 1960, Mildren winning the 1960 Australian Grand Prix and the 1960 Australian Drivers" Championship.
He retired from racing during 1961.
In late 1963 Mildren announced the formation of The team met with success in Australian endurance races, winning the 1964 Sandown 6 Hour International, the 1965 International 6 Hour Touring Carolina Race and the 1967 Surfers Paradise Four Hour with Alfa Romeos. The latter was one of a number of cars raced by the team under the Mildren marque name.
A family car dealership company, which was established by Mildren in 1953, continues to trade today (2014) as Mildren Prestige.