Purchasing a new or used vehicle can be very exciting and a lot of times we may overlook the real expenses of owning a vehicle. These expenses are very important to factor in when setting a monthly budget. These expenses include fuel, doc fees, interest, depreciation, insurance, maintenance and taxes. All of these expenses such as fuel, depreciation, and maintenance will vary depending on the vehicle you choose with maintenance likely being your largest ongoing expense. Taxes and additional car dealer fees are often overlooked until the final invoice is given and often times, this has buyers second guessing their initial purchase decision.