Grey import vehicles are new or used motor vehicles and motorcycles legally imported from another country through channels other than the maker’s official distribution system. The synonymous term, parallel import is sometimes substituted. (wiki)
Im sure a crown prosecutor knows what a s13 looks like underneath. They cant prove otherwise nor care. You show yoiur right(even if your not) they usually believe you, because most people are scared. Its traffic court, not fucking a federal court case.