If you use your car for deductible moving or medical purposes, you can add the cost of driving based on a standard mileage rate. For 2008, the rate is 19
A statutory method of depreciation allowing accelerated rates for most types of property used in business and income-producing activities during the years 1981 through 1986. It has been superseded by the modified accelerated cost recovery system (MACRS) for assets placed in service after 1986.