The Alfa Romeo RL was produced between 1922-1927. It was Alfa's first sport model after World War I

World War I

World War I , which was predominantly called the World War or the Great War from its occurrence until 1939, and the First World War or World War I thereafter, was a major war centred in Europe that began on 28 July 1914 and lasted until 11 November 1918...

. The car was designed in 1921 by Giuseppe Merosi

Giuseppe Merosi

Giuseppe Merosi was a famous Italian automobile engineer.Born in Piacenza, Merosi trained as a building surveyor, before he discovered his gift for the automotive engineering. He gained first experiences at Bianchi and the running department of Fiats...

. It had a straight-6 engine with overhead valves. Three different versions were made: Normale, Turismo and Sport.
The RLTF (Targa Florio) was the race version of RL - it weighed half of normal versions, the engine had seven main bearings instead of four and double carburetors.
In 1923 Alfa's race team had drivers like Ugo Sivocci

Ugo Sivocci

Ugo Sivocci was an Italian race car driver.Born in Salerno, Sivocci started his racing career with bicycle racing. After World War I, he worked as an auto mechanic in Milan. Being a friend of Enzo Ferrari, he was hired by Alfa Romeo in 1920 to drive Alfa in three-man works team: with Antonio...

, Antonio Ascari

Antonio Ascari

Antonio Ascari was an Italian Grand Prix motor racing champion.Antonio Ascari was born near Mantua, in the Lombardy region of Italy, as the son of a corn dealer. He began racing cars at the top levels in Italy in 1919, using a modified 1914 Fiat...

, Giulio Masetti

Giulio Masetti

Giulio Masetti was an Italian nobleman and racing driver, known as "the lion of Madonie" from his dominating the Targa Florio in the early 1920s....

 and Enzo Ferrari

Enzo Ferrari

Enzo Anselmo Ferrari Cavaliere di Gran Croce OMRI was an Italian race car driver and entrepreneur, the founder of the Scuderia Ferrari Grand Prix motor racing team, and subsequently of the Ferrari car manufacturer...

.
Sivocci's car had green cloverleaf symbol on white background and when he won Targa Florio

Targa Florio

The Targa Florio was an open road endurance automobile race held in the mountains of Sicily near Palermo. Founded in 1906, it was the oldest sports car racing event, part of the World Sportscar Championship between 1955 and 1973...

1923, that symbol was to become the Alfa team's good luck token.

RL total production was 2640.

Variants:

• RL Normale, 2916 cc 56 bhp (1922–1925)
• RL Turismo, 2996 cc 61 bhp (1925–1927)
• RL Sport, 2996 cc 71 bhp (1922–1927)
• RL Super Sport, 2996 cc 71 bhp (1922–1927)
• RL Super Sport Castagna, 84 bhp
• RL Super Sport Zagato, 89 bhp
• RL Targa Florio, 3154 cc 95 bhp (1923)
• RL Targa Florio, 2994 cc 90 bhp (1924)
• RL Targa Florio, 3620 cc 125 bhp (1924)