The 100 Least Fuel-Efficient Cars of All Time
Have you ever wondered just which cars are the least fuel efficient? In this article, we'll give you the 100 worst fuel efficient cars of all time, with information on each of them!
How to Determine Fuel Efficiency
The list of the best fuel efficient cars on this page is based on one simple metric provided to us by the U.S. Department of Energy: the combined miles per gallon (MPG).
This metric is calculated by taking the total miles driven by the car and dividing it by the total gallons of fuel used.
Manufacturers provide this information to the Department of Energy, they provide it to us, and we provide it to you after sifting and organizing it.
The combined miles per gallon (MPG) is a measure of how much fuel the car uses per mile and is a good indicator of how efficient the car is. It's a combination of both city and highway driving, to give you a more overall accurate MPG.
With that out of the way, let's dive into the list. You can click the links in the table below to see more detailed information about each car.
Worst Cars by Miles per Gallon
The list below is sorted by the combined miles per gallon (MPG) of the car, with the highest MPG at the top. This list includes both electric and regular fuel cars.
| Car |
Combined MPG |
Fuel Cost |
| 1990 Lamborghini Countach |
7 |
$10,550 |
| 1989 Lamborghini Countach |
7 |
$10,550 |
| 1988 Lamborghini Countach |
7 |
$10,550 |
| 1987 Lamborghini Countach |
7 |
$10,550 |
| 1986 Lamborghini Countach |
7 |
$10,550 |
| 2003 Ferrari Enzo Ferrari |
8 |
$9,250 |
| 1995 Ferrari Ferrari F50 |
8 |
$9,250 |
| 1993 Vector W8 |
8 |
$9,250 |
| 1992 Vector W8 |
8 |
$9,250 |
| 1987 Rolls-Royce Camargue |
8 |
$7,800 |
| 1987 Rolls-Royce Continental |
8 |
$7,800 |
| 1987 Rolls-Royce Corniche II |
8 |
$7,800 |
| 1987 Rolls-Royce Eight/Mulsan |
8 |
$7,800 |
| 1987 Rolls-Royce Silver Spirit/Silver Spur |
8 |
$7,800 |
| 1987 Rolls-Royce Silver Spur Limousine |
8 |
$7,800 |
| 1986 Maserati Quattroporte |
8 |
$7,800 |
| 1986 Rolls-Royce Camargue |
8 |
$7,800 |
| 1986 Rolls-Royce Corniche II/Continental |
8 |
$7,800 |
| 1986 Rolls-Royce Silver Spur Limousine |
8 |
$7,800 |
| 1985 Aston Martin Lagonda |
8 |
$7,800 |
| 1985 Aston Martin Saloon/Vantage/Volante |
8 |
$7,800 |
| 1985 Aston Martin Saloon/Vantage/Volante |
8 |
$7,800 |
| 1985 Maserati Quattroporte |
8 |
$7,800 |
| 1985 Rolls-Royce Camargue |
8 |
$7,800 |
| 1985 Rolls-Royce Corniche/Continental |
8 |
$7,800 |
| 1985 Rolls-Royce Silver Spur Limousine |
8 |
$7,800 |
| 1984 Aston Martin Saloon/vantage/volante |
8 |
$7,800 |
| 1984 Maserati Quattroporte |
8 |
$7,800 |
| 1984 Rolls-Royce Camargue |
8 |
$7,800 |
| 1984 Rolls-Royce Corniche |
8 |
$7,800 |
| 1984 Rolls-Royce Silver Spur Limousine |
8 |
$7,800 |
| 2022 Bugatti Chiron Pur Sport |
9 |
$8,200 |
| 2022 Bugatti Chiron Super Sport |
9 |
$8,200 |
| 2006 Dodge Ram 1500 Pickup 2WD |
9 |
$8,200 |
| 2005 Chevrolet Silverado 2500 HD 2WD CNG |
9 |
$3,900 |
| 2005 Chevrolet Silverado 2500 HD 4WD CNG |
9 |
$3,900 |
| 2005 Dodge Ram 1500 Pickup 2WD |
9 |
$8,200 |
| 2005 GMC Sierra 2500 HD 2WD CNG |
9 |
$3,900 |
| 2005 GMC Sierra 2500 HD 4WD CNG |
9 |
$3,900 |
| 2001 Ferrari 550 Maranello/Barchetta |
9 |
$8,200 |
| 2000 Ferrari 550 Maranello |
9 |
$8,200 |
| 1997 Vector Avtech SC / M12 |
9 |
$8,200 |
| 1996 Vector Avtech SC / M12 |
9 |
$8,200 |
| 1990 Chevrolet C1500 Pickup 2WD |
9 |
$6,950 |
| 1989 Aston Martin Lagonda |
9 |
$6,950 |
| 1989 Aston Martin Saloon/Vantage/Volante |
9 |
$6,950 |
| 1989 Aston Martin Saloon/Vantage/Volante |
9 |
$6,950 |
| 1988 Aston Martin Lagonda |
9 |
$6,950 |
| 1988 Aston Martin Saloon/Vantage/Volante |
9 |
$6,950 |
| 1988 Aston Martin Saloon/Vantage/Volante |
9 |
$6,950 |
| 1988 Dodge AW100/AW150 Ramcharger 4WD |
9 |
$6,950 |
| 1988 Dodge W100/W150 Pickup 4WD |
9 |
$6,950 |
| 1988 Dodge W250 Pickup 4WD |
9 |
$6,950 |
| 1988 Rolls-Royce Continental |
9 |
$6,950 |
| 1988 Rolls-Royce Corniche II |
9 |
$6,950 |
| 1988 Rolls-Royce Eight/Mulsan |
9 |
$6,950 |
| 1988 Rolls-Royce Silver Spirit/Silver Spur |
9 |
$6,950 |
| 1988 Rolls-Royce Silver Spur Limousine |
9 |
$6,950 |
| 1987 Aston Martin Lagonda |
9 |
$6,950 |
| 1987 Aston Martin Saloon/Vantage/Volante |
9 |
$6,950 |
| 1987 Aston Martin Saloon/Vantage/Volante |
9 |
$6,950 |
| 1987 Dodge AW100/AW150 Ramcharger 4WD |
9 |
$6,950 |
| 1987 Dodge W250 Pickup 4WD |
9 |
$6,950 |
| 1987 Rolls-Royce Continental |
9 |
$6,950 |
| 1987 Rolls-Royce Corniche II |
9 |
$6,950 |
| 1987 Rolls-Royce Eight/Mulsan |
9 |
$6,950 |
| 1987 Rolls-Royce Silver Spirit/Silver Spur |
9 |
$6,950 |
| 1987 Rolls-Royce Silver Spur Limousine |
9 |
$6,950 |
| 1986 Rolls-Royce Silver Spirit/Spur/Mulsanne |
9 |
$6,950 |
| 1985 Rolls-Royce Silver Spirit/Spur/Mulsanne |
9 |
$6,950 |
| 1984 Aston Martin Lagonda |
9 |
$6,950 |
| 1984 Aston Martin Saloon/vantage/volante |
9 |
$6,950 |
| 1984 Cadillac Limousine |
9 |
$6,950 |
| 1984 Dodge B350 Wagon 2WD |
9 |
$6,950 |
| 1984 Ford E150 Club Wagon 2WD |
9 |
$6,950 |
| 1984 Ford E250 Econoline 2WD |
9 |
$6,950 |
| 1984 Rolls-Royce Silver Spirit/Spur/Mulsanne |
9 |
$6,950 |
| 2021 Bugatti Chiron Pur Sport |
10 |
$7,400 |
| 2021 Lamborghini Aventador Coupe |
10 |
$7,400 |
| 2021 Lamborghini Aventador Roadster |
10 |
$7,400 |
| 2021 Lamborghini Aventador Sian Coupe |
10 |
$7,400 |
| 2021 Lamborghini Aventador Sian Roadster |
10 |
$7,400 |
| 2020 Bugatti Divo |
10 |
$7,400 |
| 2020 Lamborghini Aventador Sian Coupe |
10 |
$7,400 |
| 2020 Lamborghini Aventador Sian Roadster |
10 |
$7,400 |
| 2015 Bugatti Veyron |
10 |
$7,400 |
| 2014 Bugatti Veyron |
10 |
$7,400 |
| 2013 Bugatti Veyron |
10 |
$7,400 |
| 2012 Bugatti Veyron |
10 |
$7,400 |
| 2011 Bugatti Veyron |
10 |
$7,400 |
| 2010 Bugatti Veyron |
10 |
$7,400 |
| 2010 Lamborghini Murcielago |
10 |
$7,400 |
| 2010 Lamborghini Murcielago Roadster |
10 |
$7,400 |
| 2009 Lamborghini Murcielago |
10 |
$7,400 |
| 2009 Lamborghini Murcielago Roadster |
10 |
$7,400 |
| 2008 Bugatti Veyron |
10 |
$7,400 |
| 2008 Lamborghini Murcielago |
10 |
$7,400 |
| 2008 Lamborghini Murcielago Roadster |
10 |
$7,400 |
| 2007 Lamborghini L-147/148 Murcielago |
10 |
$7,400 |
| 2006 Bugatti Veyron |
10 |
$7,400 |
Conclusion
The least fuel efficient car of all time is the 1990 Lamborghini Countach. It has a combined MPG of 7 and costs $10,550 per year to drive it.
Least Fuel Efficient Cars By Year
If you want to continue researching the worst fuel efficient cars of all time, you can also look at the list of cars by year.
Link To or Reference This Page
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<a href="http://mpgbuddy.com/least-fuel-efficient-cars">The 100 Least Fuel-Efficient Cars of All Time</a>
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"The 100 Least Fuel-Efficient Cars of All Time". MPG Buddy. Accessed on April 27, 2024. http://mpgbuddy.com/least-fuel-efficient-cars.
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"The 100 Least Fuel-Efficient Cars of All Time". MPG Buddy, http://mpgbuddy.com/least-fuel-efficient-cars. Accessed 27 April, 2024
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The 100 Least Fuel-Efficient Cars of All Time. MPG Buddy. Retrieved from http://mpgbuddy.com/least-fuel-efficient-cars.