15 Least Fuel-Efficient Cars Ever Produced

Certain automobiles are renowned for prioritizing raw power and luxury over fuel efficiency. Equipped with massive engines and designed for high performance or ultimate comfort, these vehicles exemplify significantly higher fuel consumption. From powerful sports cars to luxurious SUVs, they make a bold statement on the road, yet their fuel efficiency often leaves much to be desired. Built to deliver exceptional speed, off-road capability, or unparalleled luxury, they often sacrifice fuel economy. Here, we explore the trade-offs that come with their impressive power and luxury, highlighting some of the least fuel-efficient cars ever produced.

Dodge Viper (Various Years)

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The Dodge Viper is renowned for its raw power and aggressive styling, featuring a massive V10 engine that prioritizes performance over fuel economy. Various models of the Viper offer exhilarating speed and handling but come with fuel consumption figures that make it one of the least efficient sports cars ever. Its fuel economy typically hovers around 12-15 mpg, which reflects its focus on delivering unbridled power and a thrilling driving experience rather than efficiency.

Bugatti Veyron (2005)

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The Bugatti Veyron, famous for breaking speed records, is powered by an 8.0-liter W16 engine with four turbochargers. This engineering marvel delivers over 1,000 horsepower but consumes fuel at a staggering rate, averaging about 10-12 mpg. The Veyron’s design and engineering are focused entirely on achieving unprecedented speed and luxury, making fuel efficiency a low priority.

Bentley Continental GT

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The Bentley Continental GT combines luxury with performance, featuring a twin-turbocharged W12 engine that produces a prodigious amount of power. This luxury grand tourer prioritizes comfort and speed, resulting in fuel economy figures around 15 mpg. The Continental GT’s heavy build and powerful engine underscore its commitment to luxury and performance rather than fuel efficiency.

Dodge RAM SRT-10 (2004-2006)

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The Dodge RAM SRT-10 is a high-performance pickup truck equipped with the same V10 engine found in the Viper. It delivers exceptional power and speed for a truck but at the cost of fuel efficiency, averaging around 9-12 mpg. This truck is designed for enthusiasts who value performance and power over practicality and fuel economy.

Hummer H2 (2003)

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The Hummer H2, a symbol of excess and ruggedness, features a large V8 engine that prioritizes off-road capability and imposing presence over fuel efficiency. Its fuel consumption typically ranges between 9-13 mpg. The H2’s design emphasizes robustness and luxury, resulting in a notoriously inefficient vehicle in fuel consumption.

Rolls-Royce Camargue

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The Rolls-Royce Camargue, known for its exclusivity and bespoke luxury, has a powerful V8 engine that delivers smooth and effortless performance. However, this comes with a low fuel efficiency of around 10-12 mpg. The Camargue’s focus on providing the utmost in luxury and refinement means fuel economy takes a backseat to performance and comfort.

Mercedes-Benz G-Class (G-Wagon)

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The Mercedes-Benz G-Class, or G-Wagon, is a luxury off-road vehicle equipped with powerful V8 and V12 engine options. Its fuel economy typically ranges between 13-15 mpg. The G-Wagon’s design emphasizes off-road capability and luxury, resulting in poor fuel efficiency.

Ford Excursion (2000-2005)

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The Ford Excursion is a massive SUV designed for heavy-duty use and passenger comfort, featuring large V8 and V10 engine options. Its size and power make it one of the least fuel-efficient SUVs, with fuel economy figures around 10-12 mpg. The Excursion’s primary aim is to offer space and power, sacrificing fuel efficiency in the process.

Chevrolet Suburban (Various Years)

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The Chevrolet Suburban is a full-size SUV designed for hauling and transporting large families, equipped with robust V8 engines. Its focus on size and power results in fuel economy figures around 14-16 mpg. The Suburban is built for utility and space, making it one of the least efficient vehicles in terms of fuel consumption.

Rolls-Royce Corniche (1981)

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The Rolls-Royce Corniche epitomizes luxury and elegance, featuring a large V8 engine that offers smooth and effortless performance. However, its fuel efficiency is poor, averaging around 10-12 mpg. The Corniche is designed for those who prioritize luxury and refinement over fuel efficiency, making it one of the least economical cars to operate.

Lamborghini Murciélago

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The Lamborghini Murciélago is a supercar known for its striking design and powerful V12 engine, producing over 600 horsepower. Its focus on delivering high performance and speed results in fuel consumption figures around 9-13 mpg. The Murciélago’s design and engineering prioritize thrilling driving experiences, with little regard for fuel efficiency.

Ferrari 599 GTB Fiorano

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The Ferrari 599 GTB Fiorano features a 6.0-liter V12 engine that delivers breathtaking performance and speed. This supercar’s fuel economy hovers around 11-15 mpg, reflecting its focus on high performance and luxury rather than efficiency. The 599 GTB Fiorano is designed for enthusiasts who value speed and handling over fuel consumption.

Cadillac Escalade (Various Years)

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The Cadillac Escalade is a luxury SUV equipped with powerful V8 engines that prioritize performance and comfort. Its fuel economy figures typically range between 14-17 mpg. The Escalade’s focus on providing a luxurious and powerful driving experience makes it one of the least fuel-efficient SUVs on the market.

Maserati GranTurismo

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The Maserati GranTurismo features a high-performance V8 engine that delivers impressive speed and handling. Its fuel efficiency averages around 13-17 mpg, reflecting its focus on providing a thrilling and luxurious driving experience. The GranTurismo is designed for those who prioritize performance and style over fuel economy.

Aston Martin DBS V12

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The Aston Martin DBS V12 is a grand tourer that combines luxury with a powerful 5.9-liter V12 engine. Its fuel efficiency averages around 12-15 mpg, reflecting its emphasis on delivering a high-performance and luxurious driving experience. The DBS V12 prioritizes speed and refinement over fuel economy.

This article originally appeared on 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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