States regulate car insurance companies and their rates. Since companies must follow specific rules and mandates, you can’t negotiate your rate.
Additionally, car insurance rates are based on personal factors. When determining rates, car insurance companies look at things like your address, driving record, credit history, and the type of vehicle you drive. As these vary from person to person, it wouldn’t be fair to negotiate a lower rate—especially if you didn’t have a clean driving record or drove a high-risk vehicle.