Which Car Brands Are the Most Expensive to Maintain? Car Maintenance Cost: Which Brands Are the Most Expensive to Maintain? From a Brisbane Mechanic The most significant expense you will incur with your car is the initial purchase price. But, the annual cost to maintain a car can vary significantly from brand to brand as well as between different models. Whether you have bought a European vehicle or a Japanese one, you will have a list of car maintenance costs you will need to pay throughout the year: Registration Insurance Servicing Possible Brake Repairs (Make sure you visit a great brake repairs specialist) Petrol/Diesel costs