| Lancia Beta | |
| Aka: | Lancia Beta-15/20HP |
| Manufacturer: | Lancia |
| Body Style: | Torpedo |
| Layout: | FR layout |
| Engine: | 3118.81 cc straight-4 34 hp |
| Production: | 1909 |
| Predecessor: | Lancia Alfa Lancia Dialfa |
| Successor: | Lancia Gamma-20HP |
| Transmission: | 4-speed manual |
| Weight: | 7800NaN0 |
| Wheelbase: | 2931NaN1 |
The Lancia 15/20HP (Type 54, Beta) is an automobile which was produced by Lancia of Italy in 1909.
The 15/20HP replaced the earlier 12HP-Alfa and 18/24HP Dialfa models. Basically the car was a modernized version of the 12HP with the engine displacementenlarged from 2.5 to 3.1 litres (from 28 hp to 34 hp) and the wheelbase increased from 2821NaN1 to 293.21NaN1. 150 examples were manufactured before it was replaced by the Gamma-20HP model (type 55) in 1910.