Can the police find out that the passport was stolen and bought a car abroad?

Can be found. Now that the passport system is globally connected, illegal records can be enjoyed. You need to contact the civil affairs department of the country where the inquired person is located, and then go through a series of legal procedures before you can inquire about personal information. But it can't be found online at all, because passport information is not public. If you are abroad, you can only go to the local immigration office to find some visa advice; If you want to inquire about China passport information, you should go to the embassy. Passport numbers are easy to find. Go to the local public security organ or log in to official website, the local public security department.