 Brabham cars were designed and built by Motor Racing Developments Ltd . ( MRD ) , which was jointly owned by Tauranac and Jack Brabham and built cars for customers in several racing series . The Formula One racing team , BRO , was a separate company wholly owned by Jack Brabham . It bought its cars from MRD but Tauranac had little connection with the race team between 1962 and 1965 . 
