Gas-powered car: 30 mpg efficiency, $4/gallon cost of fuel, and maintenance cost of $0.10/mi, $0.25 overage fee for a 15,000 mile lease
Spring Free EV lease: 4.0 miles/kWh efficiency, $0.25/kWh cost of charge, maintenance cost of $0.06/mile, Spring Free EV overage fee of $0.25 (for 1801-2500 miles driven)