The Lone Star was a passenger vehicle in production between 1919 and 1922. It was made by the Lone Star Motor Truck and Tractor Association, San Antonio, Texas.
The Lone Star was available as the Beauty Four (Piedmont model 4-30) with a Lycoming engine or the Beauty Six (Piedmont Model 6-40) with a Continental engine. Both open and closed models were offered. The cars were manufactured for Lone Star by Piedmont Motor Car Company of Lynchburg, Virginia.
Advertisements listed the 4-30 model for sale at $1,545 (). Lone Star sales ended in 1922 when the Piedmont factory closed.