Compare quotes on a like-for-like basis, checking whether each policy is third-party, third-party fire and theft, or fully comprehensive. Note the compulsory and voluntary excesses, exclusions, mileage limits, courtesy-car arrangements and whether extras such as breakdown cover are included or charged separately. Give accurate details about your driving history, address, annual mileage and car security, as incorrect information could affect a claim. Check the insurer is FCA-authorised and review the policy wording and cancellation charges before buying; the cheapest quote may not provide the cover you need.