For the Targa Florio of 1923, Merosi developed four cars, entrusting them to Antonio Ascari, Enzo Ferrari, Giulio Masetti and Ugo Sivocci.

Sivocci, Ferrari's discoverer and friend, was a pilot of great experience and technical competence, but had poor luck and was considered l'eterno secondo (Italian for 'the eternal second').

Towards the end of the race the chances of victory were limited to the leading trio, composed of Ascari and Sivocci, followed by Minoia on a Steyr VI Klausen Sport.

[2][3][4] As if to confirm the importance of the quadrifoglio, a few months later on September 8, 1923, a tragic accident occurred in which Sivocci lost his life at the Monza raceway.

The fact that he crashed in a vehicle that lacked the quadrifoglio made a lasting impression among the pilots, mechanics and technicians of the world of competitions.

[5] Even in the absence of official regulations, from the 1924 season the bodywork of racing Alfa Romeo autos were decorated with the green four-leaf clover.

This was a variant of the Giulia sedan devised for competition but regularly put on sale; it had green four-leaf clovers on its front wings, without the triangle.

The Q4 name was also used originally introduced in 1992 on the Alfa Romeo 155 Q4 (turbocharged 4 wheel drive, top of line version), and on the badge the Q was stylized as a cloverleaf, so it meant Quadrifoglio 4.