| A.L.F.A. 15 HP | |
| Manufacturer: | A.L.F.A. |
| Assembly: | Portello, Milan, Italy |
| Production: | 1911–1913 |
| Layout: | Front-engine, rear-wheel drive |
| Engine: | 2.4 L I4 |
| Transmission: | 3-speed manual |
| Wheelbase: | 29201NaN1 |
| Length: | 37801NaN1 |
| Width: | 14001NaN1 |
| Weight: | 9200NaN0 |
| Predecessor: | A.L.F.A 12 HP |
| Successor: | A.L.F.A 15-20 HP |
The A.L.F.A 15 HP is a medium size car produced by A.L.F.A., a company that later became Alfa Romeo, from 1911 to 1913.
The model was derived from the A.L.F.A. 12 HP and had a four-cylinder engine with 2,413 cc of displacement. Compared to the predecessor, the displacement was unchanged, but power output was increased. The 15-HP engine had a compression ratio of 4.2:1 and developed a maximum output of 240NaN0 at 2,400 rpm. Bore and stroke were, respectively, 80and. It was a front-engine, rear-wheel-drive car. The 15 HP had a three-speed gearbox, and was equipped with a parking brake. The track was 13001NaN1. The 15 HP was available in two types of body: torpedo and saloon. The car had a top speed of 950NaN0. It was designed by Giuseppe Merosi and was priced at 9,500 lire.