At HWM Collins he became part of a three-car team with Lance Macklin and Moss, and they competed in most of the F2 races in Britain and in Europe. Collins showed in speed, but the underfinanced HWM-Alta rarely finished a race. His best result was second place in the Grand Prix des Sables d'Olonne. Collins got his Formula One break in 1952, with HWM when he replaced Moss. His best result in a World Championship event that year was sixth in the French Grand Prix at Rouen-Les-Essarts.