After the war, Bira returned to racing with several teams. In 1951 he raced in an old Maserati 4CLT fitted with a newer V12 Osca engine. No results were obtained this year as a result of the poor performance of the car combined with a severe accident. By 1954, with a newer car, a Maserati 250F, he won the Grand Prix des Frontières on the Chimay road circuit and then finished fourth in the 1954 French Grand Prix with his own Maserati. In January 1955, he won the New Zealand Grand Prix at Ardmore; he retired at the end of that season.