The Alfa Romeo 6C 2500 is not merely a magnificent sport touring car—although it is, of course, renowned for its performance by Alfisti worldwide.

Often called “The Last Great Alfa,” the model represented the end of a long line of six-cylinder Alfa Romeos that began in 1928 with the 6C 1500.

The 6C 2500 was introduced in 1938 and would be built until 1952; it spanned two radically different eras for Alfa Romeo, from the pre-World War II time of large, exclusive, and hand-built machines made in relatively limited numbers to the smaller, more modern, and more accessible sports cars that would emerge in the years following the cessation of the conflict.

In creating the 6C 2500, Alfa Romeo retained the 6C 2300’s independently sprung suspension while upgrading the engine.

Bruno Treviso redesigned the classic straight-six engine, increasing the cylinder bore by 2 millimeters for a 2.5-liter displacement, improving the cylinder head for improved aspiration and increased compression.

Thes...