The True Cost of Owning a Ford Mustang GT

Cost example updated October 24, 2026

Start with the price you will actually pay

For a representative example, use a 2025 Ford Mustang GT Fastback at $46,560 with the standard 5.0-liter V8 (480 horsepower) and the 6-speed manual. That is the starting MSRP listed by Ford dealers and by CarBuzz, and J.D. Power lists the same $46,560 MSRP. One honest gap: we could not confirm whether the $46,560 starting price includes the $1,995 destination charge (the delivery fee from the factory to the dealer), so this page states "$46,560" without claiming it does. Trims run from the EcoBoost Fastback near $31,920 to the Dark Horse near $64,080, and a loaded GT Premium example with options was listed at $58,900, so replace this starting point with a written quote for the exact trim you are considering. J.D. Power also reports that people actually paid about $48,200 on average for a 2025 GT Fastback, with 80% paying between $43,684 and $54,370, which shows how far a real transaction can sit from the starting price.

The down payment does not make the Mustang cheaper; it changes how much you finance (borrow). With 10% down ($4,656), 8% APR (the yearly interest rate on the loan) and 60 months, and the 7% sales tax ($3,259) and $900 in title and dealer fees rolled into the loan, this example finances $46,063 at $934 a month, and the loan costs about $9,977 in interest over five years. The 7% sales tax is a national-style assumption for this model page, not a state rate, model doors are not state-specific, so your state's rate will change the financed amount.

Fuel: the V8 line item

The GT Fastback with the 6-speed manual is rated 18 mpg combined (15 city, 23 highway) by Kelley Blue Book and by a Ford dealer page for the GT Premium Fastback. At 12,000 miles a year that is about 667 gallons annually, roughly $2,860 a year, $14,300 over five years at $4.29 a gallon, the AAA national average for regular gasoline on October 23, 2026 (AAA reported $4.27 on October 22, 2026, so the price moved a few cents inside the same week). Real-world results move with how the car is driven: a V8 driven hard in town drinks more than the rating.

Two fuel gaps, stated rather than settled. First, one dealer spec page lists the GT Fastback at 17 mpg combined (14 city, 23 highway) instead of 18, at 17 mpg, five-year fuel would be $15,141, about $841 more. Second, Kelley Blue Book lists premium fuel as recommended for the GT, while a dealer page says the engine accepts 87-octane regular. This example uses regular at $4.29 a gallon; at the October 2026 premium average near $5.21 a gallon, five-year fuel would be $17,350, about $3,050 more. If you plan to run premium, use that figure instead.

Depreciation is the biggest question mark, not just the biggest bucket

Depreciation is the value a vehicle loses over time. iSeeCars' comparison pages put the Mustang's five-year loss at 28.7%, it keeps roughly 71.3% of its price. On a $46,560 purchase, that means a resale value near $33,197 after five years, about $13,363 of depreciation, roughly $223 a month. That figure is in the same neighborhood as Edmunds' true-cost table for the 2025 GT coupe, which puts five-year depreciation at $14,503, about 31% of this example price.

But this is the widest conflict on the page, and it is stated in full rather than settled. CarEdge puts the Mustang's five-year loss near 57%, $29,541 on its typically-equipped $52,046 average price, which works out to about $26,427 of depreciation and about $20,133 of resale on a $46,560 car, roughly $13,064 worse than the iSeeCars figure. iSeeCars' own dedicated resale page for the Mustang convertible lists a 42.4% five-year loss, but that is the convertible body style, not this GT Fastback coupe, so it is not used for the math here. That is exactly why the resale figure here is a planning assumption, not a forecast: run a second scenario with the CarEdge-level resale before deciding, because the decision changes a lot depending on which source turns out right for your car.

Insurance runs sports-car money

Full-coverage averages for a Mustang run from about $171 a month for Mustangs of all ages (MoneyGeek and InsuredBetter) to about $235 a month for a 2025 model (MoneyGeek's 2025 figure), with Insurify at about $229 a month on average and CarEdge at about $2,666 a year, or $222 a month. This example uses $230 a month, or $13,800 over five years, near the 2025-model end of that range, not the all-ages average, because this is a new GT. Premiums depend heavily on the driver, ZIP code, coverage and insurer, so get a quote on the exact trim with matching deductibles (what you pay first on a claim) and limits before treating any average as yours.

Mustang maintenance costs: the GT wears tires and brakes faster

Edmunds' true-cost table for the 2025 GT coupe puts five-year maintenance at $4,381 plus $884 in repairs, or $5,265 combined, and RepairPal puts the Mustang's average annual repair cost near $709. This example allows $1,050 a year, or $5,250 all-in for maintenance and repairs, almost exactly Edmunds' GT figure, rounded, with room for the wear items a performance coupe consumes ahead of schedule: wider performance tires and bigger brakes cost more per set than a family sedan's. CarEdge's much lower $2,539 five-year maintenance figure is noted here as the low end, not used, because it sits well below both Edmunds' GT-specific table and RepairPal's annual average spread over five years.

The cushion matters most after the warranty years: the basic warranty runs 3 years or 36,000 miles and the powertrain warranty 5 years or 60,000 miles, so years four and five are when out-of-warranty items start to land on the owner. Budget for them now, while the car is new.

The full five-year example

Every figure below comes from the site's own calculator math. The stated inputs are: 2025 Ford Mustang GT Fastback, $46,560 price, 10% down ($4,656), 8% APR, 60 months, 7% sales tax (national-style assumption, labeled as an assumption), $900 in title and dealer fees, 12,000 miles per year, 18 mpg, $4.29 per gallon (AAA, October 23, 2026), $230 per month insurance, $1,050 per year maintenance, $33,197 resale value after five years. The sales tax and fees are rolled into the loan, so the amount financed is $46,063.

• Depreciation: $13,363 ($46,560 minus $33,197 resale)
• Insurance: $13,800 ($230 x 60 months)
• Fuel: $14,300 (12,000 / 18 x $4.29 x 5 years)
• Maintenance: $5,250 ($1,050 x 5 years)
• Tax, fees and interest: $14,136 ($3,259 sales tax, $900 fees, $9,977 loan interest)

That totals roughly $60,849, or about $1,014 a month. Notice what that says about the $934 payment: on this car the payment is not the whole story, it is about 92% of the average month's true cost, and during the loan years the cash actually going out is the payment plus insurance, fuel and upkeep. And if the CarEdge depreciation figure proves closer to reality, the total would be about $73,913, or about $1,232 a month, run that second scenario.

Formula

The five-year total is the sum of five buckets: depreciation, insurance, fuel, maintenance, and tax, fees and interest. Depreciation is the $46,560 price minus the $33,197 resale value after five years, which is $13,363. Insurance is $230 a month times 60 months, which is $13,800. Fuel is 12,000 miles a year divided by 18 miles per gallon, times $4.29 a gallon, times 5 years, which is about $14,300. Maintenance is $1,050 a year times 5 years, which is $5,250. Tax, fees and interest is 7% sales tax on $46,560, which is $3,259, plus $900 in title and dealer fees, plus about $9,977 of loan interest, which is $14,136.

Added together, $13,363 plus $13,800 plus $14,300 plus $5,250 plus $14,136 equals $60,849, or about $1,014 a month. The amount financed is the $46,560 price plus $3,259 sales tax plus $900 in fees, minus the $4,656 down payment, which is $46,063. The tax and fees are rolled into the loan. At 8% APR over 60 months, the payment on $46,063 is $934 a month, and the loan costs about $9,977 in interest over five years.

Why Mustang buyers should think past year five

Sports cars are often keepers or weekend cars, and that is where the economics can improve: the loan ends at year five, and the depreciation curve flattens. The costs that arrive in years six through ten are the wear-and-repair years noted above. The keep it 10 years guide shows how to extend this same math honestly.

Shopping the Mustang against another sports car? The Car Showdown runs any two vehicles through the same five buckets side by side. If you are cross-shopping inside Ford, the F-150 cost page uses the same five-bucket method on a very different kind of Ford, run both vehicles' real numbers rather than assuming they match.

Buying in Texas? Texas adds its own layer to these numbers, a 6.25% sales tax, its own fees, and its own insurance picture. See the true cost of a car in Texas.

Calculation transparency

Jurisdiction. United States. Sales tax, titling, registration and insurance rules are set by your state, so your exact numbers depend on where you buy and register the car. The 7% sales tax and $900 in fees in this example are planning figures, not any one state's actual rates.

Rules and time period. Five years, 12,000 miles a year, gas at $4.29 a gallon (AAA national average, October 23, 2026), 8% APR, 60 months, 10% down. The resale value is a planning assumption, not a forecast.

Scope and limitations. Educational estimate only. Insurance and maintenance are planning figures, not quotes. Get a real quote for the same trim, coverage and loan before you decide.

iSeeCars' own pages disagree on the Mustang's five-year value loss: its 2026 study reports 26.8% for the Mustang while its comparison pages report 28.7%, so the 28.7% figure used here is kept as a planning assumption, not as a current reading.

Source links checked November 6, 2026. Figures: 2026 Mustang GT Fastback starting MSRP, $46,560; EPA combined fuel economy, 18 mpg; CarEdge Mustang five-year maintenance, $2,539, and insurance, about $2,666 a year.

Primary sources: Lakeland Automall, 2026 Ford Mustang GT pricing; fueleconomy.gov, EPA fuel economy ratings; CarEdge, Ford Mustang cost of ownership. How the numbers are calculated is written down on the methodology page, and every source is listed on the sources page.

Definitions

Depreciation. The value a car loses over time. On this page, the $46,560 price minus the $33,197 resale value after five years, which is $13,363.

Resale value. What the car is worth after five years in this example, $33,197. A planning assumption, not a forecast.

APR. Annual percentage rate, the yearly interest rate on the loan. This example uses 8%.

Down payment. The cash paid up front. Here it is 10%, or $4,656.

Destination charge. The delivery fee from the factory to the dealer. It is $1,995 on the Mustang, and this page could not confirm whether the $46,560 starting price includes it.

Combined mpg. The EPA city and highway ratings blended into one figure. It is 18 for the GT Fastback with the 6-speed manual, 15 in the city and 23 on the highway. One dealer spec page lists 17 mpg combined instead.

Full coverage. Insurance that covers damage to your own car as well as damage to others. Published averages run from about $171 a month for Mustangs of all ages to about $235 a month for a 2025 model; this example uses $230 a month.

Premium gas. Higher-octane gasoline. Kelley Blue Book lists premium fuel as recommended for the GT, while a dealer page says the engine accepts 87-octane regular. This example uses regular at $4.29 a gallon; at the October 2026 premium average near $5.21 a gallon, five-year fuel would be $17,350.

Questions people actually ask

How much does a Ford Mustang GT cost per month?

About $1,014 a month over five years in the example above. The loan payment alone is $934 a month, insurance, fuel and upkeep sit on top of that during the loan years, and depreciation is the value the car loses rather than cash out the door.

How much does a Ford Mustang GT cost to own for 5 years?

About $60,849 over five years for a 2025 GT Fastback at $46,560, using the assumptions on this page: 10% down, 8% APR, 60 months, 7% sales tax, 12,000 miles a year and $4.29-a-gallon gas.

What is the gas mileage of a Ford Mustang GT?

The 2025 GT Fastback with the 6-speed manual is rated 18 mpg combined (15 city, 23 highway). One dealer spec page lists 17 mpg combined instead, so treat 17 to 18 mpg as the range and run your own numbers at the lower end if you drive mostly in town.

How much does insurance cost for a Ford Mustang GT?

Published full-coverage averages run from about $171 a month for Mustangs of all ages to about $235 a month for a 2025 model. This example uses $230 a month, or $13,800 over five years. Your own quote depends on the driver, ZIP code, coverage and insurer.

Does a Ford Mustang GT hold its value?

Sources disagree sharply, and this page does not hide that. iSeeCars puts the five-year loss at 28.7%, meaning the car keeps about 71.3% of its price, and Edmunds puts the GT's five-year loss near 31%. CarEdge puts it near 57%, which would mean about $26,427 of depreciation on a $46,560 car instead of $13,363. Run both scenarios before deciding.

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