The 1954 Formula One season brought new rules for 2.5 L engines; Ferrari's new car, designated the Ferrari Tipo 625, could barely compete against Fangio with the Maserati and then the Mercedes-Benz W196 which appeared in July. Ferrari had only two wins, González at the 1954 British Grand Prix and Mike Hawthorn at the 1954 Spanish Grand Prix. In the 1955 Formula One season Ferrari did no better, winning only the 1955 Monaco Grand Prix with driver Maurice Trintignant. Late in the tragic 1955 season, the Ferrari team purchased the Lancia team's D50 chassis after they had retired following Ascari's death; Fangio, Peter Collins, and Eugenio Castellotti raced the D50s successfully in the 1956 Formula One season: Collins two races, Fangio won three races and the championship.