Historic vehicles are automobiles, motorcycles, and other forms of transportation that hold significant cultural, technological, or historical value. These vehicles often represent important advancements in engineering and design, showcasing the evolution of transportation over time. Many historic vehicles are preserved in museums or collected by enthusiasts, highlighting their importance in automotive history. The classification of a vehicle as "historic" can vary by region, but it typically includes those that are at least 25 years old. Examples of historic vehicles include classic cars like the Ford Model T and vintage motorcycles such as the Harley-Davidson Knucklehead. These vehicles often participate in shows and events, celebrating their legacy.