When determining the best auto insurance score, several factors come into play. These factors typically include a person's credit history, driving record, insurance history, and the type of vehicle being insured. Credit history is a significant factor in determining the best auto insurance score. Insurance companies often use credit-based insurance scores to assess the likelihood of a person filing a claim. Driving record is another crucial factor. A clean driving record with no accidents or traffic violations generally leads to a better insurance score. Insurance history also plays a role, as a longer history of maintaining continuous coverage can positively impact the insurance score. Additionally, the type of vehicle being insured can affect the insurance score, with factors such as the vehicle's make, model, age, and safety features being taken into consideration.