1. If the service and guarantee provided by the original insurance company are satisfactory, and there is no accident record in the previous year, then renewal is usually a more cost-effective choice, because insurance companies usually provide certain preferential services to old customers.
2. If the service quality provided by the original insurance company is poor, or there are many accident records, changing insurance companies may be a better choice, but it should be noted that changing insurance companies may face a slight increase in premiums.