What does the term "special interest vehicle" refer to?

The term "special interest vehicle" typically refers to vehicles that are unique or modified in ways that distinguish them from standard production models, often reflecting a personal interest or passion. In this context, a vehicle with modifications for racing aligns precisely with the definition of a special interest vehicle, as it indicates an investment of time and resources to enhance its performance or appearance suitable for racing activities.

These vehicles are often curated and maintained by their owners, showcasing a dedicated interest in automotive culture, whether for competition or show. While other options such as vehicles preserved by hobbyists or those recognized for their historical significance can also be seen as special interest vehicles, the modifications for racing specifically highlight the uniqueness and specialized focus inherent to such vehicles in the automotive community.