All cars are classified into an insurance group. The higher the number category your car is in the more you will pay for insurance. These Classes can be for various reasons, but the most common is engine size. The bigger the engine, the higher the insurance group.
Some types of modifications to your vehicle may affect your next car insurance premium. This could incude items such as body spoilers, alloy wheels, modified suspension, engine modifications and even sat nav.
Older drivers of 70 and over must complete a medical insurance form every three years that confirms they are still fit to drive. Sometimes their insurance premiums may also rise as there is a higher risk of accidents over th age of 70.