Electric cars generally have lower maintenance due to fewer moving parts (no oil changes, for example). However, battery replacement is a significant potential expense, though warranties often cover the first 8 years/100,000 miles. Gas cars have more frequent maintenance needs (oil, filters, etc.) and are subject to engine and exhaust system repairs. Factor in your local electricity costs versus gas prices to estimate fuel/energy expenses. Over 5 years and 75,000 miles, the Leaf should cost less if you avoid a battery replacement, but it's not guaranteed. Resale value also plays a role; EVs are still relatively new, so depreciation is less predictable.