The UK’s best car insurance companies 2019 NFU Mutual – 91.74% Percentage of customers that would renew their policy: 93% … RIAS – 88.62% Percentage of customers that would renew their policy: 65% Privilege – 88.54% Percentage of customers that would renew their policy: 70% … LV – 87.31% … Quote Me Happy – 86.92%