Do you offer a multi-car discount? Multi-car, Policy, Discount, Second car, Two cars Some insurers offer a multi-car discount because they know that you can't drive two cars at once! Because we take your mileage directly into account, we don't offer a multi-car discount. Related articles I'm trying to get a second policy with you. Why can't I use the same email address? Do you charge cancellation fees? Do I need a UK licence? How do I connect my Mercedes account to By Miles? Can I add or remove drivers on the policy?