Driver type Nationwide liability-only monthly premium Nationwide full coverage monthly premium Clean driving record Speeding ticket on driving record At-fault accident on driving record DUI on driving record Teen driver Senior driver (60s) Senior driver (70s) Data sourced from Insurify For Nationwide to have an NAIC complaint index of just 0.39, the lowest I've seen for an auto insurance company, means that Nationwide customers are filing complaints with their state insurance departments far less than other customers … nationwide. Average car insurance premiums aren't close between Nationwide and State Farm, as State Farm beats Nationwide pretty handily on rates.