The A.L.F.A 15 -20 HP is a car produced by A.L.F.A, manufacturer that later became Alfa Romeo.

The model was derived from 15 HP and was fitted with a four-cylinder engine and 2,413 cc of displacement.

[1] In fact the engine of 15-20 HP had a compression ratio of 4.3: 1 and developed a maximum power of 28 CV at 2,400 rpm.

It was front engined rear wheel drive car.

It was designed by Giuseppe Merosi and it was on sale, at launch, to 9,500 lire.