Many auto insurance carriers offer a discount on premiums for good students. They believe that students performing well in school are safer drivers than their C-average peers. Companies that offer such a discount may differ in their qualifications. Some require a 3.0 GPA. Others want to see the student on honor roll. Still others require that the student be in the top 20% of their class to qualify. If there is a student driver in your home, there is a little extra incentive for them to study hard.