just make sure the car was imported/assembled and most importantly sold by AB itself. Btw which model are you looking to buy? AFAIK Most E36s(3 series) and E39s (5 series) were from AB but many E60s were from grey importers/AP holders.
If the car was from AB just call their Glenmarie customer service and just quote the VIN, they should be able to verify the lastest mileage when the car was last in for a service/repairs if any.