Alfa Romeo RL was produced between 1922-1927, it was Alfa's first sport model after World War I, designed in 1921 by Giuseppe Merosi.
Car had straight-6 engine with overhead valves. Three different versions was made: Normale, Turismo and Sport. RLTF (Targa Florio) was race version of RL and it weighted half of normal versions, engine had seven main bearings instead of four and double carburetos.
In 1923 Alfa race team had drivers like Ugo Sivocci, Antonio Ascari, Giulio Masetti and Enzo Ferrari. Sivocci's car had green cloverleaf symbol on white background and when he won Targa Florio 1923, that symbol was become Alfa's good luck token to the team.
The Coppa Acerbo was an automobile race held in Italy, the race was renamed the Circuito di Pescara. The race was run between 1924 and 1961 and over the years was held to a variety of vehicle class regulations and durations.
In 1957 the Pescara Grand Prix formed a round of the Formula One World Championship, a race which still holds the record as having the longest circuit length ever used for a Championship event with a circuit length of 25.579 km.