- 1939 - 1940 - 1941 - 1942 - 1943 - 1944 - 1945 - 1946 - 1947 - 1948 - 1949 - 1950 - 1951 In the late 1930s, continued rapid development in the increasingly competitive international voiturette class, and the introduction of the Alfa Romeo 158 and ERA B- and C-type models, forced the Maserati brothers into designing a new, square-bore, inline- ...
