How can I verify if someone is falsely claiming number of vehicles in their inventory?

In order to find out if someone is falsely claiming number of vehicles in their inventory, you need to first note down the claim they are making on their website about the number of vehicles in their stock. Once noted, you need to search the vehicles currently present on their website. Once the search is completed, match the search results with the claims made on the website to see the difference. If both the figures are not matching, then it will clearly indicate that a seller of used vehicles from Japan is making a fake claim.