25 Gas-Guzzling Cars with the Worst MPG Ratings of All Time

If you’re looking to save on fuel, these cars are not the way to go. Some vehicles are notorious for burning through gas faster than you can fill up the tank. In this list, we’ll take a look at 25 of the most gas-guzzling cars with the worst MPG ratings of all time. From luxury models to heavy-duty SUVs, these vehicles will have you spending more time (and money) at the pump than on the road.

Lamborghini Aventador

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With a monstrous 6.5-liter V12 engine, the Aventador prioritizes speed and performance over fuel economy. Its 9 MPG city rating is a clear sign that this supercar’s primary focus is raw power, making it one of the worst gas consumers in the exotic car world.

Bugatti Veyron

Bugatti Veyron
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Featuring an 8.0-liter W16 quad-turbocharged engine, the Bugatti Veyron is designed for record-breaking speed. However, all that power comes at a steep cost, with a fuel efficiency rating of 8 MPG city. The Veyron is the epitome of performance-first design, with little regard for fuel efficiency.

Ford F-250 Super Duty (V8)

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The F-250 is built to tow and haul massive loads, which comes with significant fuel demands. Its 6.7-liter Power Stroke V8 is a workhorse, but the 10 MPG city rating means it’s a gas guzzler, especially for those who frequently use it in urban environments.

Chevrolet Suburban 2500 (V8)

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Known for its size and utility, the Suburban 2500 is powered by a 6.0-liter V8 engine that prioritizes towing capacity and passenger space over fuel efficiency. Its 10 MPG city rating reflects the cost of operating such a heavy and capable vehicle.

Rolls-Royce Phantom

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The Phantom is the epitome of luxury, but its 6.75-liter V12 engine comes with a hefty fuel bill. Despite its refined ride, this ultra-luxurious car offers just 12 MPG city, which shows that luxury and efficiency don’t always go hand in hand.

Hummer H1

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The original Hummer, with military-grade durability and a 6.5-liter turbodiesel V8, is more at home in rugged off-road environments than in the city. Its poor fuel efficiency of 10 MPG city and 14 MPG highway made it notorious for guzzling gas.

Mercedes-Benz G-Class (G63 AMG)

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The G63 AMG boasts a twin-turbo 4.0-liter V8 that churns out massive power, but its boxy design and weight result in an abysmal 13 MPG city rating. It’s a vehicle built for off-road performance and luxury, but fuel economy is an afterthought.

Jeep Grand Cherokee Trackhawk

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With a supercharged 6.2-liter V8 under the hood, the Trackhawk offers mind-blowing speed and performance in an SUV package. However, its 11 MPG city rating reveals just how much fuel it burns to achieve that level of power.

Chevrolet Camaro ZL1 (Manual)

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The Camaro ZL1 is a muscle car with a supercharged 6.2-liter V8 engine that prioritizes raw acceleration and speed. The result? A 12 MPG city rating that makes it one of the least efficient sports cars on the road.

Dodge Durango SRT Hellcat

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This SUV combines practicality with a supercharged 6.2-liter V8 engine, but that combination results in a gas-guzzling 12 MPG city rating. The Hellcat’s immense power makes it fun to drive, but it’s not built for fuel-conscious drivers.

Bentley Mulsanne

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The Mulsanne, powered by a 6.75-liter V8, is all about opulence and smooth cruising. Unfortunately, that luxury comes at a price, with a dismal 10 MPG city rating. Bentley focuses on comfort and power, not fuel efficiency.

Cadillac Escalade ESV (V8)

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The Escalade ESV is an SUV known for its size, power, and luxury. With a 6.2-liter V8 engine, it sacrifices fuel economy for performance, offering just 14 MPG city. Its massive weight and size also contribute to poor fuel efficiency.

Dodge Ram 2500 (V8)

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Built for towing and heavy-duty tasks, the Ram 2500’s 6.4-liter V8 engine delivers power, but at a cost of 12 MPG in the city. This truck is designed for work, not for saving fuel.

Nissan Armada

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The Nissan Armada’s 5.6-liter V8 engine provides solid power for a full-size SUV, but its fuel economy suffers. With just 14 MPG city, the Armada is one of the least efficient SUVs in its class.

Toyota Land Cruiser

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The Land Cruiser is a robust, off-road capable SUV with a 5.7-liter V8 engine. While it excels in durability and reliability, it struggles with fuel efficiency, offering only 13 MPG city and 17 MPG highway.

Lexus LX 570

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The Lexus LX 570 shares its underpinnings with the Land Cruiser, including its 5.7-liter V8 engine. Its luxury features are unmatched, but its 12 MPG city rating puts it among the worst in terms of fuel economy.

Ford Expedition

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With a 3.5-liter twin-turbocharged V6, the Expedition manages more power than fuel efficiency. The 15 MPG city rating makes it one of the least efficient full-size SUVs, despite its practicality for families and cargo.

Lincoln Navigator L

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The Navigator L offers luxury and space but with a poor fuel economy of 15 MPG city. Its 3.5-liter twin-turbo V6 is powerful, but the vehicle’s weight and size take a toll on fuel consumption.

Infiniti QX80

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Powered by a 5.6-liter V8 engine, the QX80 is designed for luxury and towing, not fuel efficiency. With just 14 MPG city, it is one of the least efficient luxury SUVs on the market.

GMC Yukon XL (V8)

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The Yukon XL’s 6.2-liter V8 engine offers power, but it comes at the cost of fuel economy, delivering only 14 MPG city. This large SUV is built for utility and space, not for minimizing trips to the gas station.

Chevrolet Silverado 1500 (6.2L V8)

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The Silverado 1500’s 6.2-liter V8 provides excellent towing capability, but at the expense of fuel efficiency, with only 14 MPG city. This truck is popular for heavy-duty tasks, but drivers will pay for it at the pump.

Dodge Charger Hellcat

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The Charger Hellcat’s supercharged 6.2-liter V8 makes it a beast on the road, with a top speed of over 200 mph. However, its 13 MPG city rating is a clear sign that performance comes before fuel efficiency.

Jeep Wrangler Unlimited (Rubicon 392)

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The Wrangler Rubicon 392, with its 6.4-liter V8 engine, is built for off-road dominance. However, its poor aerodynamics and massive engine result in just 13 MPG in the city.

Range Rover SV Autobiography

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Combining off-road capability with luxury, the Range Rover SV Autobiography’s 5.0-liter supercharged V8 engine offers power at the cost of efficiency, delivering only 14 MPG city.

Porsche Cayenne Turbo GT

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With a 4.0-liter twin-turbo V8, the Cayenne Turbo GT is a performance SUV that prioritizes speed and handling over fuel economy, offering only 14 MPG in the city. This makes it one of the least efficient luxury SUVs.

This article originally appeared in MyCarMakesNoise.

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Author: Dave Johnston

Dave is a hands-on automotive technician with experience in performing service, diagnostics, and repairs on domestic and imported vehicles. He enjoys writing and sharing his knowledge far and wide.

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