The Alfa Romeo Tipo 308 or 8C-308 is a Grand Prix racing car made for the 3 litre class in 1938.

Only four cars were produced, actually modified from Tipo C with the engine mounted lower into the chassis and a slimmer body.

One of the cars was brought to Argentina where it gathered some success and victories in the hands of Óscar Alfredo Gálvez.

[1] Overall Alfa Romeo's 3 litre formula cars (Tipo 308, 312 and 316) were not a great success.

Instead, the new car for the 1500 cc class, the 158 voiturette, designed in 1937 and first raced at the Coppa Ciano in August 1938, proved much more successful.