The RL was one of Alfa's most successful models, both as a race car and touring car. In addition to the Targa Florio, the RL won at Mugello, Cremona, and the Coppa Della Consuma in 1923. (S/N 7145)

The cars in this Targa Florio sported a green four-leaf clover on a white background. With this victory it would subsequently adorn many an Alfa in the years to come and today is something that every enthusiast associates with the marque.

Ugo Sivocci garnered the first international win for Alfa Romeo at the 1923 Targa Florio. His RL was adorned with the now famous quadrifolgio.

Vittorio Jano, considered by many as the greatest Italian car designer and certainly the man that designed cars that catapulted Alfa Romeo to fame, had joined the firm in Portello in 1923. One of his first jobs was to design the twin-cam version of the 6C/1750 model. The top of the range model, the 6C/1750 Gran Sport was to begin a stream of successes for Alfa Romeo on the track as well as on the road.