What is a defining characteristic of a "Special Interest Vehicle"?

A defining characteristic of a "Special Interest Vehicle" is that it is preserved without modifications. This means that the vehicle is maintained in a condition that reflects its original state, which is often important for collectors and enthusiasts who wish to showcase the vehicle's historical and cultural significance. Preservation without alterations ensures that the vehicle retains its value and authenticity, making it appealing to those who appreciate classic or unique automobiles.

In contrast, vehicles that are modified may not be categorized as "Special Interest Vehicles" since modifications can change the original intent, design, or historical context of the vehicle. Thus, the emphasis on preservation highlights the importance of authenticity and the vehicle’s original features, distinguishing it from other types of vehicles that might be personalized or altered for different uses.