Hybrid vs Gas Car Long-Term Cost Comparison for US Drivers
A hybrid sedan costs $9,479 a year to own against $9,956 for the petrol equivalent — $477 less. Fuel accounts for $569 of that, maintenance for a further $235. Depreciation runs $73 the other way, and insurance is effectively identical: one dollar apart.
The annual cost, category by category
AAA models ownership cost across six categories at 15,000 miles a year. Four of them are published separately for hybrid and petrol sedans.
| Cost category | Hybrid sedan | Petrol sedan | Difference |
|---|---|---|---|
| Depreciation | $3,535 | $3,462 | +$73 |
| Fuel | $1,100 | $1,669 | −$569 |
| Insurance | $1,571 | $1,572 | −$1 |
| Maintenance, repair & tyres | $1,551 | $1,786 | −$235 |
| Annual total | $9,479 | $9,956 | −$477 |
AAA Your Driving Costs 2025, sedan category averages at 15,000 miles a year. Verified against the source publication.
Add the four differences above and you get $732 in the hybrid’s favour. The published totals differ by $477. The gap is not an error — it is two categories AAA includes in the total but does not publish separately for hybrid and petrol sedans: licence, registration and taxes, and finance charges. Together they run about $255 against the hybrid, which is what a higher purchase price produces in registration tax and loan interest.
We show the arithmetic rather than quietly presenting four categories as though they explained the whole difference. If a comparison elsewhere shows components that sum neatly to the headline number, check whether every category is accounted for.
Fuel is most of the advantage
The hybrid sedan burns $1,100 of fuel a year against $1,669 for petrol — a saving of $569, or roughly 34 percent.
That single line is larger than the total annual gap, and it is the only category that scales directly with how far you drive. Everything else on the list is broadly fixed. A driver covering half the AAA assumption sees roughly half the fuel saving while the depreciation, insurance and finance differences stay where they are — which is enough to close the gap entirely.
The reverse is also true. At 25,000 miles a year the fuel advantage grows to roughly $950 while the categories running against the hybrid do not move, and the annual saving widens well past $477.
Maintenance is the quieter advantage
Hybrid sedans are modelled at $1,551 a year for maintenance, repair and tyres against $1,786 for petrol — $235 less.
This runs against the common assumption that hybrid systems cost more to keep running. AAA’s category data does not support that for sedans. It also does not explain the difference, and we are not going to invent a reason for it: the study publishes the figure, not the cause.
Insurance: a difference of one dollar
Hybrid sedans are modelled at $1,571 a year for insurance. Petrol sedans: $1,572. The difference is one dollar.
That is worth stating plainly because “hybrids cost more to insure” is repeated widely. At the category level in AAA’s 2025 data, they do not. Individual models vary — a specific hybrid can carry a higher premium than a specific petrol car — but as a category the difference is indistinguishable from zero.
Depreciation runs the other way
The one category where the petrol sedan wins. Hybrids are modelled at $3,535 a year against $3,462 — $73 more.
It is a small figure and it reflects a higher starting price rather than faster value loss in percentage terms. Depreciation is also the least certain line in any ownership-cost model, since it forecasts a resale market several years out.
Where electric sits
For context, AAA models an electric sedan at $13,692 a year — substantially more than either.
| Cost category | Hybrid | Petrol | Electric |
|---|---|---|---|
| Depreciation | $3,535 | $3,462 | $7,088 |
| Fuel or energy | $1,100 | $1,669 | $729 |
| Insurance | $1,571 | $1,572 | $2,027 |
| Maintenance | $1,551 | $1,786 | $1,358 |
| Annual total | $9,479 | $9,956 | $13,692 |
The electric sedan’s energy cost is the lowest of the three at $729 a year, and its maintenance is lower than petrol. What moves it well past both is depreciation — $7,088 a year, roughly double the hybrid — and insurance at $2,027.
How to read these figures
These are category averages across the sedans AAA includes in each group, not a single model pair. A specific hybrid compared against a specific petrol car will differ, sometimes considerably, and comparing across categories — a hybrid saloon against a petrol SUV, say — produces a number that says more about body style than about powertrain.
AAA’s model assumes 15,000 miles a year, a five-year ownership period and a new vehicle bought with a loan. Change any of those and the balance moves, fuel first and furthest.
And two categories are not broken out at this split, as set out above. The $477 is the published difference between two published totals; the four categories we can show account for $732 of it in the hybrid’s favour, with licence, registration, taxes and finance charges running roughly $255 the other way.
Frequently asked questions
For sedans, yes — by $477 a year in AAA’s 2025 category data, $9,479 against $9,956. Fuel and maintenance drive the difference. That is a category average at 15,000 miles a year, not a promise about any particular pair of cars.
Not at the category level. AAA models hybrid sedans at $1,571 a year and petrol sedans at $1,572 — one dollar apart. Individual models vary, but the category difference is effectively zero.
The hybrid is already cheaper at AAA’s 15,000-mile assumption, so there is no break-even mileage to clear at that distance. Drive materially less and the advantage narrows, because fuel is the only category that scales with distance while the ones running against the hybrid do not. AAA does not publish figures at other mileages, so we do not estimate a crossover point.
AAA’s data says the opposite for sedans: $1,551 a year against $1,786 for petrol, covering maintenance, repair and tyres. The study publishes the figure but not the reason, so we report the difference without attributing a cause.
About the Author — Ashvin J. Sonani
Founder & Lead Researcher at Cars.Zone. Digital marketer, data analyst and domain investor with 28+ years of internet experience, now focused on US automotive cost intelligence. Cars.Zone analyses are built from primary industry sources (AAA, Kelley Blue Book, Edmunds, iSeeCars, Experian, NAIC) for core cost data, with select supporting figures sourced from industry aggregators including Bankrate — each figure attributed to its named source and cross-verified before publication. No manufacturer or dealer relationships influence editorial content.