When you're working out your annual mileage try and base it on what you have done in the past. Make your allowance generous and then you can really enjoy the time you spend behind the wheel.
Going over your limit
If you do go over your agreed annual mileage then you will need to pay an excess mileage charge. This is calculated on a pence-per-mile basis and will be shown on your finance quotation.
Going under your limit
If you cover fewer miles than you anticipate, your car might be worth more than originally estimated, which means that you might have some equity to put towards your next car.