When your car is declared a total loss, insurance covers its current market value, not what you originally paid. Actual cash value (ACV) is your vehicle's current worth at the time of loss, calculated by subtracting depreciation from the replacement cost.
Insurance companies pay the ACV amount (minus your deductible) when your car is totaled or stolen. They determine ACV using valuation systems and professional services that account for depreciation from age, mileage and wear. Your ACV payout will always be less than your original purchase price.