BMW i7 M70 vs Porsche Panamera 4S E-Hybrid — 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 i7 M70: $215,963 net over 10 years ($5,759/yr running). Porsche Panamera 4S E-Hybrid: $151,024 net over 10 years ($6,264/yr running). Estimates for Cedar Park, TX; every assumption is editable.