Buick Envista Avenir vs Mazda CX-50 2.5 S Select — 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.Buick Envista Avenir: $64,090 net over 10 years ($3,826/yr running). Mazda CX-50 2.5 S Select: $65,103 net over 10 years ($4,043/yr running). Estimates for Cedar Park, TX; every assumption is editable.