Cheapest Car to Fill Up vs. a $190 Raptor R

Cheapest Car to Fill Up vs. a $190 Raptor R

A 2026 Toyota Prius AWD costs about $46 to fill while a Ford Raptor R approaches $190. Here’s the more revealing annual fuel-cost comparison.

At today’s gasoline prices, a 2026 Toyota Prius AWD can take approximately $46 to fill from empty. A 2026 Ford F-150 Raptor R can approach $190. That is a remarkable difference, but the bigger story is what each vehicle costs over thousands of miles. The cheapest fill-up and the least expensive vehicle to drive are not always the same thing.

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The $46 Toyota Prius AWD fill-up

The Prius AWD has a 10.5-gallon gasoline tank. Using AAA’s October 9, 2026 national average regular gasoline price of $4.3718 per gallon, the theoretical cost to fill that tank from empty is $45.90. The Prius XLE AWD is rated at 49 mpg combined, which works out to roughly 515 miles on a full tank under EPA test conditions. Actual driving range varies with weather, speed and driving style.

There is a distinction within the Prius family. The front-wheel-drive Prius LE can achieve better mileage but carries a larger fuel tank. A small bill at the filling station is not proof that the vehicle uses the least fuel per mile. For readers comparing cars, start with EPA fuel-economy testing rather than the size of the tank alone.

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Ford F150 Raptor

Why a hybrid can stretch every gallon

A conventional Prius hybrid doesn’t need to be plugged in. The gasoline engine and electric motor share the workload, while regenerative braking recovers some energy normally wasted as heat. The Department of Energy explains how hybrid electric vehicles operate and why city traffic can work in their favor.

That engineering choice changes the running cost. At the stated national price and 49 mpg, 100 miles cost about $8.92. If you travel 15,000 miles a year, gasoline works out to around $1,338, assuming you achieve the EPA combined figure throughout the year. The Prius is not a solution for every family or every journey, but its fuel spending is extraordinarily predictable relative to thirsty performance vehicles.

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Mitsubishi Mirage

The $190 Ford Raptor R fill-up

Then there is the Ford F-150 Raptor R, a production performance pickup powered by a supercharged 5.2-liter V8. Its 36-gallon tank is enormous compared with the Prius, and its 2026 EPA combined rating is just 12 mpg, with 10 city and 15 highway. It is the kind of vehicle whose abilities make sense far from a supermarket parking lot, but fuel efficiency is not among them.

At the October 9 premium gasoline reference price of $5.2787 per gallon, filling all 36 gallons costs $190.03. The arithmetic is simple and eye-opening. Twelve miles per gallon also means a theoretical 432 miles per tank, fewer than the Prius despite carrying more than three times as much gasoline. A driver using its power frequently should expect poorer real-world consumption.

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Ford F150 Raptor Engine

What 15,000 miles does to your budget

Divide the pump price by the combined fuel-economy figure and multiply by 100 to compare driving costs fairly. The Prius needs about $8.92 per 100 miles; the Raptor R needs about $43.99. At 15,000 annual miles, that is approximately $1,338 versus $6,598. The difference exceeds $5,200 annually before accounting for insurance, tires, servicing or depreciation.

Prices themselves are moving targets. AAA tracks the national pump-price average, while the Energy Information Administration explains how crude oil, refining and taxes influence the number outside a filling station. Regional prices can vary sharply, so these are national illustrations, not quotes from an individual station.

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Mitsubishi Mirage

Why the Mitsubishi Mirage cannot enter

The old Mitsubishi Mirage is a tempting candidate for the smallest gasoline bill. Its little 9.2-gallon tank would cost about $40.22 at the same regular gas price. However, the Mirage left the U.S. new-model lineup after 2024. This comparison is confined to 2026 and 2027 vehicles, so an unsold older car doesn’t qualify. Nor should an unusually configured special-order exotic be allowed to distort an everyday dealership comparison.

One further qualification is essential. The Raptor R is not definitively America’s most expensive vehicle to fill: certain heavy-duty pickups have tanks exceeding 36 gallons. Many are not assigned the same EPA passenger-vehicle economy estimates, so a strict worst-mpg ranking across those trucks would be misleading. The Ford is an instructive extreme among EPA-rated new gasoline vehicles, not a mathematically proven champion across everything with a dealer sticker.

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Mitsubishi Mirage

One small way to protect a big investment

Fuel expenses are only part of ownership. Keeping the cabin clean can also matter when the vehicle is sold or traded. We recently looked at protecting your car’s carpet and trade-in value. Properly fitted all-weather mats can help contain mud and spills, although they cannot guarantee a specific resale-price increase.

Test Miles readers can shop OEDRO all-weather floor mats at the official store using discount code NIKM20, or shop OEDRO on Amazon. Use NIKM20 at the official OEDRO website. Test Miles may earn a commission on purchases through these affiliate links. Always secure driver-side mats properly; the NHTSA floor-mat guidance warns that poorly installed mats can interfere with pedals.

Ford F150 Raptor

The Test Miles verdict

Nobody should expect a supercharged off-road truck to match a Prius at the pumps. They were created for profoundly different jobs. But a buyer who drives 15,000 miles a year should understand the $5,000-plus difference in annual gasoline before signing the finance agreement. Check the EPA number, check the fuel grade, check tank capacity, and calculate what your own commute will cost. The purchase price is only the beginning.