In addition to the compulsory car insurance comprehensive cover can protect you against loss which is not covered elsewhere. This includes theft, fire, storm, stroke of lightning, accidents with animals, cullet and damage by marten.
Comprehensive cover also pays for the damage on your car in accidents you are reliable for. This is especially important for new and valuable vehicles for which you are still paying installments.
For car fleets special policies with excess are available to keep the financial risk under control.