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Top 20 Cars That Guzzle the Most Gas

Jimmy Adell June 3, 2025

In an era where fuel efficiency and environmental consciousness are becoming critical considerations for car buyers, some vehicles continue to defy the trend by consuming fuel at astonishing rates.
High gas consumption not only impacts your wallet with frequent visits to the fuel pump but also contributes significantly to environmental pollution and greenhouse gas emissions.
Owning a gas-guzzler can bring considerable economic strain, especially with fluctuating fuel prices and increased environmental regulations.
This article reveals the top 20 vehicles notorious for their excessive fuel usage, guiding potential buyers and auto enthusiasts alike in making informed decisions about their next car purchase.

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1. Bugatti Chiron

Widely recognized as an engineering masterpiece, the Bugatti Chiron boasts unparalleled speed and power, with its astonishing 8.0-liter quad-turbocharged W16 engine producing nearly 1,500 horsepower.
This hypercar accelerates from 0 to 60 mph in under 2.5 seconds and can reach top speeds exceeding 260 mph, making it one of the fastest production vehicles ever built.
However, such extraordinary performance comes at a significant cost to fuel economy, with the Chiron averaging a mere 9 miles per gallon (mpg) in city driving.
Compared to competitors like the Koenigsegg Agera RS or the McLaren P1, the Chiron remains notably thirsty—cementing its reputation as a top-tier gas guzzler.
Source: FuelEconomy.gov

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2. Lamborghini Aventador

The Lamborghini Aventador is renowned for its aggressive styling and breathtaking performance, powered by a potent 6.5-liter naturally aspirated V12 engine generating around 730 horsepower.
This iconic supercar accelerates from 0 to 60 mph in less than 3 seconds and delivers a thrilling driving experience, but efficiency is not its forte.
With an EPA estimated fuel economy of roughly 9 miles per gallon in city driving and 15 mpg on highways, the Aventador remains significantly less fuel-efficient than rivals like the Ferrari 812 Superfast and the McLaren 720S.
Its combination of raw power and luxury comes at the cost of frequent gas station visits.
Source: FuelEconomy.gov

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3. Rolls-Royce Phantom

The Rolls-Royce Phantom represents the pinnacle of automotive luxury, combining handcrafted interiors, cutting-edge technology, and unparalleled comfort.
Powered by a robust 6.75-liter V12 engine delivering 563 horsepower, the Phantom effortlessly carries its substantial curb weight, offering a serene driving experience.
However, this combination of luxury and sheer mass significantly impacts fuel economy, with the Phantom averaging approximately 12 mpg in city driving and 20 mpg on highways.
Compared to luxury rivals like the Mercedes-Benz S-Class or the Bentley Flying Spur, the Phantom’s fuel consumption is notably higher, reflecting the vehicle’s prioritization of opulence over efficiency.
Source: FuelEconomy.gov

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4. Ferrari 812 Superfast

Ferrari’s 812 Superfast lives up to its name, offering blistering speed and dynamic handling thanks to its powerful 6.5-liter naturally aspirated V12 engine, which generates an extraordinary 789 horsepower.
Accelerating from 0 to 60 mph in under 3 seconds, the 812 Superfast delivers an exhilarating driving experience, embodying Ferrari’s commitment to uncompromising performance.
However, this exceptional performance comes at a considerable fuel cost, achieving an EPA-estimated 12 mpg city and 16 mpg highway.
Compared to competitors such as the Aston Martin DBS Superleggera or the McLaren 720S, the Ferrari 812 Superfast remains notably less efficient, necessitating frequent fuel stops.
Source: FuelEconomy.gov

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5. Bentley Mulsanne

The Bentley Mulsanne epitomizes automotive luxury, featuring handcrafted interiors, exquisite detailing, and unmatched comfort. Powered by a substantial 6.75-liter twin-turbocharged V8 engine producing 505 horsepower, the Mulsanne effortlessly moves its considerable weight, delivering a refined driving experience. Unfortunately, such grandeur and performance significantly impact fuel efficiency; the Mulsanne achieves an EPA-estimated 10 mpg in city driving and just 16 mpg on highways. Compared to rivals like the Mercedes-Maybach S650 and Rolls-Royce Ghost, the Bentley Mulsanne ranks among the least economical in its class, emphasizing opulence and prestige over practicality and fuel economy.
Source: FuelEconomy.gov

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6. Mercedes-Benz G-Class AMG

The Mercedes-Benz G-Class AMG blends rugged off-road capability with high-performance luxury, powered by a potent 4.0-liter twin-turbocharged V8 engine producing up to 577 horsepower.
While its boxy, military-inspired design and exceptional power make it an automotive icon, these attributes also contribute to its notoriously poor fuel economy.
With an EPA-estimated 13 mpg city and 16 mpg highway, the G-Class AMG lags behind more efficient competitors like the Range Rover Sport SVR or Porsche Cayenne Turbo.
Its heavy curb weight and aggressive performance tuning ensure frequent visits to the pump, reflecting a trade-off between unparalleled capability and efficiency.
Source: Car and Driver

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7. Jeep Grand Cherokee Trackhawk

The Jeep Grand Cherokee Trackhawk is the ultimate performance SUV, packing an explosive 6.2-liter supercharged V8 engine capable of producing a staggering 707 horsepower.
Its immense power propels this hefty SUV from 0 to 60 mph in just 3.5 seconds, rivaling many dedicated sports cars.
However, such aggressive performance inevitably leads to poor fuel economy, with the Trackhawk achieving an EPA-estimated 11 mpg in city driving and 17 mpg on highways.
Compared to competitors like the BMW X5 M or the Porsche Cayenne Turbo, the Trackhawk consumes significantly more fuel, highlighting its prioritization of sheer power over efficiency.
Source: FuelEconomy.gov

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8. Ford F-250 Super Duty

The Ford F-250 Super Duty stands as a robust, heavy-duty pickup truck designed for demanding workloads and substantial towing power.
Equipped with a powerful 6.2-liter V8 gasoline engine, this truck generates 385 horsepower and substantial torque, allowing it to handle challenging tasks effortlessly.
However, its considerable size, hefty weight, and rugged build significantly diminish fuel efficiency, resulting in an EPA-estimated average of approximately 11 mpg city and 16 mpg highway.
Compared to rivals such as the Chevrolet Silverado 2500HD and RAM 2500, the F-250 Super Duty demonstrates similarly low efficiency, highlighting a broader trend among heavy-duty trucks prioritizing strength and capability over fuel economy.
Source: FuelEconomy.gov

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9. Toyota Land Cruiser

The Toyota Land Cruiser is revered globally for its legendary off-road capabilities, rugged build quality, and exceptional reliability.
Powered by a sturdy 5.7-liter V8 engine delivering 381 horsepower, this iconic SUV can easily navigate challenging terrains and harsh conditions.
However, the Land Cruiser’s impressive performance and robust, heavy construction come at the expense of fuel efficiency, achieving just 13 mpg city and 17 mpg highway according to EPA estimates.
In comparison to other large SUVs like the Chevrolet Tahoe or Ford Expedition, the Land Cruiser tends to consume more fuel, reflecting its emphasis on durability and off-road prowess rather than economical commuting.
Source: FuelEconomy.gov

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10. Chevrolet Suburban

The Chevrolet Suburban is an iconic full-size SUV renowned for its spacious interior, powerful towing capacity, and family-friendly versatility.
Powered by a robust 5.3-liter V8 engine generating 355 horsepower, the Suburban comfortably handles heavy loads and large passenger groups.
However, its substantial size, weight, and powerful engine significantly reduce fuel efficiency, resulting in an EPA-estimated fuel economy of just 15 mpg city and 19 mpg highway.
Compared to rivals such as the Ford Expedition or GMC Yukon, the Suburban exhibits similarly low fuel economy figures—underscoring a common trade-off among large SUVs between capability and fuel savings.
Source: FuelEconomy.gov

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11. Nissan Armada

The Nissan Armada offers a compelling blend of power, luxury, and spaciousness, making it a popular choice among families seeking comfort and capability.
Under the hood, a robust 5.6-liter V8 engine produces 400 horsepower, allowing the Armada to deliver confident acceleration and substantial towing performance.
But with great power comes reduced efficiency—the Armada achieves only an EPA-estimated 14 mpg city and 19 mpg highway.
Compared to competitors like the Chevrolet Tahoe or Toyota Sequoia, the Armada shows similarly low fuel efficiency, highlighting the inherent trade-off in large SUVs between performance, size, and fuel economy.
Source: FuelEconomy.gov

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12. Cadillac Escalade

The Cadillac Escalade is synonymous with luxury, offering premium interiors, advanced technology, and commanding road presence, making it a top choice among full-size luxury SUVs.
With its potent 6.2-liter V8 engine delivering 420 horsepower, the Escalade provides impressive acceleration and substantial towing capacity.
However, luxury and performance attributes significantly impact fuel efficiency, resulting in EPA estimates of just 14 mpg city and 19 mpg highway.
Compared to rivals like the Lincoln Navigator or the Mercedes-Benz GLS-Class, the Escalade exhibits notably lower fuel economy, reflecting its prioritization of luxury, size, and power over saving fuel.
Source: FuelEconomy.gov

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13. Dodge Charger SRT Hellcat

The Dodge Charger SRT Hellcat is a performance sedan that pushes boundaries, featuring an aggressive 6.2-liter supercharged V8 engine delivering an astonishing 717 horsepower.
Known for its raw power and blistering acceleration, the Hellcat charges from 0 to 60 mph in just 3.6 seconds—performance that rivals dedicated sports cars.
Yet, this exhilarating performance comes at a significant fuel cost, managing only 12 mpg city and 21 mpg highway according to EPA estimates.
Compared to performance-oriented sedans like the BMW M5 or Audi RS7, the Charger Hellcat’s fuel efficiency suffers noticeably, prioritizing sheer power over economical daily driving.
Source: FuelEconomy.gov

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14. GMC Yukon XL

The GMC Yukon XL is renowned for its expansive interior, impressive towing capabilities, and powerful road presence, making it a preferred choice among families and adventure-seekers alike.
Powered by a robust 5.3-liter V8 engine that delivers 355 horsepower, this full-size SUV easily handles heavy loads and extended road trips.
However, its substantial dimensions and powerful performance negatively impact fuel efficiency, achieving an EPA-estimated 15 mpg city and 19 mpg highway.
When compared to similar models like the Ford Expedition Max or Chevrolet Suburban, the Yukon XL demonstrates equally limited fuel economy, highlighting the common trade-off between capability and fuel savings.
Source: FuelEconomy.gov

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15. Infiniti QX80

The Infiniti QX80 combines opulent luxury with impressive capability, offering refined interiors, advanced technology, and a commanding presence on the road.
Powered by a substantial 5.6-liter V8 engine generating 400 horsepower, the QX80 provides smooth acceleration and strong towing capacity, catering to those seeking both elegance and performance.
However, its considerable weight and powerful engine lead to notably low fuel efficiency, achieving an EPA-estimated 14 mpg city and 20 mpg highway.
Compared to luxury rivals such as the Lexus LX 570 or Cadillac Escalade, the Infiniti QX80 exhibits similarly high fuel consumption, emphasizing comfort and strength over economy.
Source: FuelEconomy.gov

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16. Lexus LX570

The Lexus LX570 seamlessly blends luxurious comfort with formidable off-road capabilities, making it a top choice among premium SUV enthusiasts.
Powered by a robust 5.7-liter V8 engine producing 383 horsepower, the LX570 handles challenging terrain and heavy towing tasks with ease.
However, its substantial weight, powerful engine, and boxy design significantly compromise fuel economy, resulting in EPA estimates of just 12 mpg city and 16 mpg highway.
Compared to competitors like the Land Rover Range Rover or BMW X7, the LX570’s fuel efficiency falls short, highlighting Lexus’s emphasis on luxury interiors and rugged capability over fuel savings.
Source: FuelEconomy.gov

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17. Range Rover SVAutobiography

The Range Rover SVAutobiography is an ultra-luxurious SUV that combines sophisticated British design with remarkable off-road capability and powerful performance.
Under its hood lies a commanding 5.0-liter supercharged V8 engine, delivering an impressive 557 horsepower and effortless acceleration.
However, this combination of heavy luxury, substantial horsepower, and all-terrain readiness results in notably poor fuel economy, with EPA estimates hovering around 13 mpg city and 19 mpg highway.
Compared to similar premium SUVs such as the Bentley Bentayga or Mercedes-Benz GLS-Class, the SVAutobiography’s fuel efficiency suffers notably, emphasizing lavish comfort and superior performance over economy.
Source: FuelEconomy.gov

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18. Porsche Cayenne Turbo

The Porsche Cayenne Turbo exemplifies the perfect harmony between sporty performance and luxurious comfort, making it one of the most thrilling SUVs on the market.
Powered by a potent 4.0-liter twin-turbocharged V8 engine generating 541 horsepower, this SUV delivers sports car-like acceleration and agile handling.
However, this exceptional performance comes with a noticeable compromise—fuel efficiency.
The Cayenne Turbo achieves an EPA-estimated 15 mpg city and 19 mpg highway, placing it behind rivals such as the BMW X5 M and Audi RS Q8 in terms of economy.
Ultimately, Porsche prioritizes exhilarating driving dynamics and premium features over fuel savings.
Source: FuelEconomy.gov

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19. Audi RS Q8

The Audi RS Q8 represents the pinnacle of Audi’s SUV lineup, blending aggressive styling, sophisticated luxury, and high-performance engineering.
Under the hood, its 4.0-liter twin-turbocharged V8 engine produces a remarkable 591 horsepower, enabling a rapid 0-60 mph sprint in just 3.7 seconds.
While these performance credentials are undeniably impressive, they come at the cost of efficiency, with the RS Q8 achieving EPA estimates of just 13 mpg city and 19 mpg highway.
Compared to rivals such as the BMW X6 M and Mercedes-AMG GLE 63 S, the RS Q8’s fuel consumption remains notably higher, prioritizing thrilling performance over fuel economy.
Source: FuelEconomy.gov

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20. Maserati Levante Trofeo

The Maserati Levante Trofeo elegantly combines Italian luxury with fierce performance, offering drivers an SUV experience steeped in prestige and speed.
Powered by a robust 3.8-liter twin-turbocharged V8 engine built by Ferrari, the Levante Trofeo produces an impressive 590 horsepower, propelling it from 0 to 60 mph in just 3.8 seconds.
Unfortunately, such performance and luxury come with a significant fuel economy penalty, achieving EPA estimates of just 13 mpg city and 20 mpg highway.
Compared to competitors like the Porsche Cayenne Turbo or BMW X5 M, the Levante Trofeo’s fuel efficiency remains noticeably lower, prioritizing Italian flair and exhilarating performance over economical driving.
Source: FuelEconomy.gov

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Conclusion

Generate Me Vibrant Colour Car(1) — Image source: motor-junkie

From ultra-luxury sedans and sports cars to heavy-duty SUVs and trucks, this list underscores that extraordinary performance and lavish comfort often come at the expense of fuel efficiency.
While these vehicles offer thrilling speed, unmatched luxury, or immense capability, their substantial fuel consumption poses significant economic and environmental concerns.
As awareness around climate change and fuel costs continues to grow, consumers should carefully weigh their priorities, considering both the immediate and long-term impacts of their vehicle choices.
By selecting vehicles thoughtfully and responsibly, drivers can balance performance desires with environmental responsibility and economic prudence, ultimately contributing to a more sustainable future.

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Top 20 Cars That Guzzle the Most Gas

1. Bugatti Chiron

2. Lamborghini Aventador

3. Rolls-Royce Phantom

4. Ferrari 812 Superfast

5. Bentley Mulsanne

6. Mercedes-Benz G-Class AMG

7. Jeep Grand Cherokee Trackhawk

8. Ford F-250 Super Duty

9. Toyota Land Cruiser

10. Chevrolet Suburban

11. Nissan Armada

12. Cadillac Escalade

13. Dodge Charger SRT Hellcat

14. GMC Yukon XL

15. Infiniti QX80

16. Lexus LX570

17. Range Rover SVAutobiography

18. Porsche Cayenne Turbo

19. Audi RS Q8

20. Maserati Levante Trofeo

Conclusion

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