The 100 Least Fuel-Efficient Cars in 2023

Have you ever wondered what the least fuel efficient cars manufactured in 2023 are? In this article, we'll list out the worst 100 cars from 2023 for fuel efficiency 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 2023 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
Land Rover Defender 110 16 $4,600
Land Rover Defender 90 16 $4,600
BMW M8 Competition Convertible 17 $4,350
BMW M8 Competition Coupe 17 $4,350
BMW M8 Competition Gran Coupe 17 $4,350
Jaguar F-Type P450 AWD R-Dynamic C... 18 $4,100
Jaguar F-Type P450 AWD R-Dynamic C... 18 $4,100
Jaguar F-Type R AWD Convertible 18 $4,100
Jaguar F-Type R AWD Coupe 18 $4,100
Land Rover Defender 110 18 $4,100
BMW Alpina B8 Gran Coupe 19 $3,900
BMW M850i xDrive Convertible 19 $3,900
BMW M850i xDrive Coupe 19 $3,900
BMW M850i xDrive Gran Coupe 19 $3,900
Jaguar F-Type P450 RWD Convertible 19 $3,900
Jaguar F-Type P450 RWD Coupe 19 $3,900
Land Rover Defender 90 19 $3,900
Genesis G70 AWD 20 $3,700
Genesis G90 MHEV 20 $3,700
Genesis GV80 AWD 20 $3,700
Kia Stinger AWD 20 $3,700
Kia Stinger RWD 20 $3,700
Land Rover Defender 110 MHEV 20 $3,700
Land Rover Defender 90 MHEV 20 $3,700
Land Rover Discovery Sport 20 $3,700
Acura MDX AWD 21 $3,500
Genesis G70 RWD 21 $3,500
Genesis G90 AWD 21 $3,500
Genesis GV70 AWD 21 $3,500
Land Rover Discovery 21 $3,500
Acura MDX FWD 22 $3,350
Genesis GV70 AWD 22 $3,350
Genesis GV80 AWD 22 $3,350
Honda Odyssey 22 $2,850
Land Rover Discovery MHEV 22 $3,350
Land Rover Range Rover Evoque 22 $3,350
Genesis G70 AWD 23 $3,200
Jaguar E-Pace 23 $3,200
Land Rover Range Rover Evoque MHEV 23 $3,200
BMW 840i Convertible 24 $3,100
BMW 840i Coupe 24 $3,100
BMW 840i Gran Coupe 24 $3,100
BMW 840i xDrive Convertible 24 $3,100
BMW 840i xDrive Coupe 24 $3,100
BMW 840i xDrive Gran Coupe 24 $3,100
Genesis GV70 AWD 24 $3,100
Kia Stinger AWD 24 $3,100
Genesis G70 RWD 25 $2,950
Kia Sportage AWD 25 $2,500
Kia Stinger RWD 25 $2,950
Mazda CX-50 4WD 25 $2,500
MINI Cooper S Clubman 25 $2,950
MINI John Cooper Works Hardtop 2... 25 $2,950
Mitsubishi Eclipse Cross 4WD 25 $2,500
MINI Cooper Countryman All4 26 $2,850
MINI Cooper S Countryman All4 26 $2,850
MINI JCW Countryman All4 26 $2,850
MINI John Cooper Works Clubman All4 26 $2,850
Mitsubishi Eclipse Cross 2WD 26 $2,400
Mitsubishi Eclipse Cross ES 4WD 26 $2,400
BMW 430i xDrive Gran Coupe 27 $2,750
BMW X2 M35i 27 $2,750
BMW X2 sDrive28i 27 $2,750
BMW X2 xDrive28i 27 $2,750
Kia Seltos AWD 27 $2,300
Mazda CX-50 4WD 27 $2,300
MINI Cooper S Clubman All4 27 $2,750
MINI Cooper S Convertible 27 $2,750
MINI Cooper S Hardtop 2 door 27 $2,750
MINI Cooper S Hardtop 4 door 27 $2,750
MINI John Cooper Works Convertible 27 $2,750
Mitsubishi Eclipse Cross ES 2WD 27 $2,300
Kia Sportage FWD 28 $2,250
MINI Cooper Countryman 28 $2,650
MINI Cooper S Countryman 28 $2,650
Kia Seltos AWD 29 $2,150
MINI Cooper S Clubman 29 $2,550
MINI John Cooper Works Hardtop 2... 29 $2,550
MINI Cooper S Convertible 30 $2,450
Kia Seltos FWD 31 $2,000
MINI Cooper Convertible 31 $2,400
MINI Cooper Hardtop 2 door 31 $2,400
MINI Cooper Hardtop 4 door 31 $2,400
MINI Cooper S Hardtop 2 door 31 $2,400
MINI Cooper S Hardtop 4 door 31 $2,400
MINI Cooper Convertible 32 $2,300
MINI Cooper Hardtop 2 door 32 $2,300
MINI Cooper Hardtop 4 door 32 $2,300
Kia Sportage Hybrid AWD 38 $1,650
Kia Sportage Hybrid FWD 43 $1,450

Conclusion

The least fuel efficient car of 2023 is the Land Rover Defender 110. It has a combined MPG of 16 and costs $4,600 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.

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  • "The 100 Least Fuel-Efficient Cars in 2023". MPG Buddy. Accessed on December 9, 2022. http://mpgbuddy.com/least-fuel-efficient-cars-in-2023.

  • "The 100 Least Fuel-Efficient Cars in 2023". MPG Buddy, http://mpgbuddy.com/least-fuel-efficient-cars-in-2023. Accessed 9 December, 2022

  • The 100 Least Fuel-Efficient Cars in 2023. MPG Buddy. Retrieved from http://mpgbuddy.com/least-fuel-efficient-cars-in-2023.