Tracking down the owner of a vehicle like this can be tricky, as the general public do not have the facility to search for a vehicle's registered owner via the numberplate. You can contact the DVLA using form V888 to request details of the owner, but you have to give just cause and it is up to the DVLA to decide if your reason is valid. The other method is to apply for the vehicle's V5C. The DVLA will contact the last known registered keeper to ask for confirmation.

If you're determined to track down the owner, we would start by trying to find out who owns the land where the vehicle is parked. You can do this via the electoral roll or the land registry search on the government's website here: www.gov.uk/search-property-information-land-regist...y

Another option is to join local Triumph owner's groups on social media and share photos of the car to see if anyone has any ideas about its history. You could even put a note under the windscreen in case the owner still lives nearby.