In early 1946 the engine, known as the 'A6TR' ('Testa Riportata'), was first used in a 'Barchetta' - a collaboration between Ernesto Maserati and engineer Alberto Massimino for a loyal customer, one Guido Barbieri. The Barchetta prototype, officially named the '6CS/46' but more commonly known as the 'A6 Sport', had a rather short motor sport career. The same can be said of another model constructed some months later and driven by 'Gigi' Villoresi in a few races without much success.
Trzecie miejsce (Horn) w 500 mil Indianapolis (USA).
Potrójne zwycięstwo (Pelassa) (Basadonna) (Piugpalu) w GP Penya Rhin (E).
4CL Coupe De La Resistance Bois De Boulogne Arialdo Ruggieri
4CL GP De Marseilles Tazio Nuvolari Raymond Sommer
4CL GP Nice