10 Awesome Cars With Terrible Gas Mileage

Jeff King
May 22, 2025

Most people prefer practical, fuel-efficient cars for reliability and affordability, but it's hard not to admire these stunning, gas-guzzling beauties. These ten cars may wreak havoc on the environment, but their appeal is undeniable.

10. Ferrari FF

ferrari ff red displayed in private collection. Photo Credit: Wikimedia Commons @Ben

The Ferrari FF gets evelent city and eighteen highway miles per gallon, with a twenty-four-gallon tank requiring frequent refills. Its shooting brake design, bubble butt, four seats, and 6.3L V12 engine with 651 horsepower make it highly desirable.

9. Hummer H1

Hummer H1 Alpha Wagon parked in the driveway of a modern home. Photo Credit: Wikimedia Commons @Motoring Weapon R

The Hummer H1 gets nine city miles per gallon, is over seven feet wide, and weighs seven thousand pounds. It offers five engine options, including the 6.6L V8 turbo, making it iconic despite its impracticality.

8. Bentley Mulsanne

a woman driving the BENTLEY MULSANNE (2009) HONG KONG. Photo Credit: Wikimedia Commons @Dinkun Chen

The Bentley Mulsanne, named after the Mulsanne Straight at Le Mans, gets eleven city and sixteen highway mpg, similar to an old race car but with more style. It boasts a 6.75L twin-turbo V8 engine, 505 horsepower, and an eight-speed automatic transmission.

7. Dodge Ram SRT-10 Quad Cab

2004 dodge ram SRT driven by a man in sunglasses. Photo Credit: Car and Driver @Dave VanderWerp

The Dodge Ram SRT-10 Quad Cab offers extended seating for the family but consumes gas at nine city and twelve highway mpg. With an 8.3L Viper engine and 500 horsepower, it’s ideal for towing anything, including a boat or trailer.

6. Lamborghini Aventador

Lamborghini Aventador S Roadster, IAA 2017. Photo Credit: Wikimedia Commons @Matti Blume

The Lamborghini Aventador gets eleven city and eighteen highway miles to the gallon and costs around four hundred thousand dollars, leaving little room for gas. It features a six-point-five-liter V12 engine with 730 horsepower, all-wheel drive, a seven-speed manual, and a top speed of two hundred seventeen miles per hour.

5. Ford F-250 Lariat Diesel

Ford F-250 Lariat Diesel parked outside a rest stop. Photo Credit: Wild Willies Everest Edition @Tanner Maloof

The Ford F-250 Lariat Diesel from the late 2000s gets nine cities and eleven highway mpg and weighs over eight and a half thousand pounds. While it was once one of the worst for gas mileage, it has since seen significant improvements.

4. Mercedes-Benz G-Wagen

Mercedes-Benz G-Wagen Brabus. Photo Credit: Wikimedia Commons @nakhon100

The Mercedes-Benz G-Wagen gets twelve city and fifteen highway miles per gallon, starting at one hundred and twenty thousand dollars, despite its boxy appearance. Powered by a 416 horsepower 4.0-liter V8 engine with all-wheel drive and a seven-speed automatic, its classic look keeps buyers coming back.

3. Rolls-Royce Phantom

Rolls-Royce Phantom VIII. Photo Credit: Wikimedia Commons @JustAnotherCarDesigner

The Rolls-Royce Phantom has a 6.8-liter V12 engine with 450 horsepower and gets eleven city and nineteen highway mpg. Weighing almost three tons, it’s a handmade work of art and one of the world’s most exclusive cars.

2. Mercedes-Benz CL65 AMG

Mercedes-Benz CL65 AMG. Photo Credit: Wikimedia Commons @nakhon100

The Mercedes-Benz CL65 AMG gets twelve city and eighteen highway mpg, powered by a V12 twin-turbo engine with 600 horsepower and a starting price of over two hundred thousand dollars. Despite its fuel efficiency, expect sky-high insurance rates as it's not a car for driving the speed limit.

1. Bugatti Veyron

Bugatti Veyron in a supercar display. Photo Credit: Wikimedia Commons @Calreyn88

The Bugatti Veyron costs two million dollars, goes from zero to sixty in 2.4 seconds, and gets seven cities and fifteen highway miles per gallon With over a thousand horsepower and a top speed of two hundred twenty-five mph, this sixteen-cylinder beast is the most ridiculous automobile—better get two.

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Jeff King
I'm a dedicated business writer with a talent for breaking down complex industry trends and strategies into actionable insights. Specializing in entrepreneurship, market analysis, and leadership, I help readers stay ahead in today’s fast-paced business landscape.

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