BMW X5 M60i vs BMW X6 M60i — 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 X5 M60i: $135,876 net over 10 years ($5,796/yr running). BMW X6 M60i: $137,446 net over 10 years ($5,826/yr running). Estimates for Cedar Park, TX; every assumption is editable.