BMW 4 Series M440i — Cost of OwnershipCompare any two cars on the true 5–10 year cost of ownership: purchase price, fuel or electricity, insurance, maintenance, registration, depreciation and resale value. EV vs gas, lease vs buy, with every assumption editable.BMW 4 Series M440i: $102,254 net cost of ownership over 10 years ($4,793/yr running). Estimates for Cedar Park, TX; every assumption is editable.