The 100 Least Fuel-Efficient Cars in 2003

Have you ever wondered what the least fuel efficient cars manufactured in 2003 are? In this article, we'll list out the worst 100 cars from 2003 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 2003 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
Ferrari Enzo Ferrari 8 $9,250
Chevrolet Silverado 2500 2WD (Bifuel) 10 $6,250
Lamborghini L-147 Murcielago 10 $7,400
Aston Martin DB AR1 11 $6,700
Aston Martin DB-7 GT Coupe 11 $6,700
Aston Martin DB-7 GT Volante 11 $6,700
Bentley Arnage 11 $6,700
Bentley Arnage LWB 11 $6,700
Ferrari 360 Modena/Spider 11 $6,700
Ferrari 360 Modena/Spider 11 $6,700
Ferrari 456 MGT/MGA 11 $6,700
Ferrari 456 MGT/MGA 11 $6,700
Ferrari 575 M Maranello 11 $6,700
Ferrari 575 M Maranello 11 $6,700
Aston Martin DB AR1 12 $6,150
Aston Martin DB-7 Vantage Coupe 12 $6,150
Aston Martin DB-7 Vantage Volante 12 $6,150
Aston Martin DB-7 Vantage Volante 12 $6,150
Bentley Azure 12 $6,150
Bentley Continental R 12 $6,150
Bentley Continental T 12 $6,150
Ferrari 360 Modena/Spider 12 $6,150
Ford F150 Dual-fuel 4WD (CNG) 12 $5,200
Land Rover Discovery Series II 12 $6,150
Maserati Coupe Cambiocorsa/Coupe GT 12 $6,150
Maserati Coupe Cambiocorsa/Coupe GT 12 $6,150
Maserati Spider Cambiocorsa/Spider GT 12 $6,150
Maserati Spider Cambiocorsa/Spider GT 12 $6,150
Mercedes-Benz G500 12 $6,150
Aston Martin DB-7 Vantage Coupe 13 $5,700
Aston Martin Vanquish 13 $5,700
Cadillac Escalade AWD 13 $4,800
Cadillac Escalade ESV AWD 13 $4,800
Cadillac Escalade Ext AWD 13 $4,800
Chevrolet Avalanche 1500 4WD 13 $4,800
Chevrolet Avalanche 1500 AWD 13 $4,800
Chevrolet Express 1500 AWD 13 $4,800
Chevrolet Silverado SS 1500 AWD 13 $4,800
Chevrolet Suburban 1500 4WD 13 $4,800
Chevrolet Suburban 1500 AWD 13 $4,800
Chevrolet Tahoe 1500 4WD 13 $4,800
Chevrolet Tahoe 1500 AWD 13 $4,800
Chevrolet Van 1500 AWD Conversion 13 $4,800
Dodge Dakota Pickup 4WD 13 $4,800
Dodge Durango 2WD 13 $4,800
Dodge Durango 4WD 13 $4,800
Dodge Ram 1500 Pickup 2WD 13 $4,800
Dodge Ram 1500 Pickup 4WD 13 $4,800
Dodge Ram 1500 Pickup 4WD 13 $4,800
Dodge Ram Van 2500 2WD 13 $4,800
Dodge Ram Van 2500 2WD 13 $4,800
Dodge Ram Van 2500 2WD CNG 13 $2,700
Ford E150 Econoline 2WD 13 $4,800
Ford E250 Econoline 2WD 13 $4,800
Ford F150 CNG 13 $2,700
Ford F150 Dual-fuel 2WD (CNG) 13 $4,800
Ford F150 Pickup 2WD 13 $5,700
GMC Savana 15/25 AWD Conversion... 13 $4,800
GMC Savana 1500 AWD (Passenger) 13 $4,800
GMC Sierra Denali 1500 AWD 13 $4,800
GMC Yukon 1500 4WD 13 $4,800
GMC Yukon 1500 AWD 13 $4,800
GMC Yukon XL 1500 4WD 13 $4,800
GMC Yukon XL 1500 AWD 13 $4,800
Land Rover Range Rover 13 $5,700
Lexus LX 470 13 $4,800
Lincoln Blackwood 2WD 13 $5,700
Lincoln Navigator 2WD 13 $5,700
Mercedes-Benz G55 AMG 13 $5,700
Toyota Land Cruiser Wagon 4WD 13 $4,800
BMW X5 14 $5,300
BMW X5 4.6is 14 $5,300
Cadillac Escalade 2WD 14 $4,450
Cadillac Funeral Coach / Hearse 14 $4,450
Chevrolet Astro AWD (cargo) Conversion 14 $4,450
Chevrolet Astro AWD (passenger) 14 $4,450
Chevrolet Avalanche 1500 2WD 14 $4,450
Chevrolet Avalanche 1500 4WD 14 $4,450
Chevrolet Avalanche 1500 AWD 14 $4,450
Chevrolet Express 1500/2500 2WD 14 $4,450
Chevrolet S10 Pickup 4WD 14 $4,450
Chevrolet Silverado 1500 4WD 14 $4,450
Chevrolet Silverado 1500 4WD 14 $4,450
Chevrolet Suburban 1500 2WD 14 $4,450
Chevrolet Suburban 1500 4WD 14 $4,450
Chevrolet Suburban 1500 AWD 14 $4,450
Chevrolet Tahoe 1500 2WD 14 $4,450
Chevrolet Tahoe 1500 4WD 14 $4,450
Chevrolet Tahoe 1500 AWD 14 $4,450
Chevrolet TrailBlazer Ext 4WD 14 $4,450
Chevrolet Van 15/25 2WD Conversion 14 $4,450
Chevrolet Van 1500/2500 2WD 14 $4,450
Chevrolet Van 1500/2500 AWD 14 $4,450
Dodge Dakota Pickup 2WD 14 $4,450
Dodge Dakota Pickup 4WD 14 $4,450
Dodge Dakota Pickup 4WD 14 $4,450
Dodge Durango 4WD 14 $4,450
Dodge Ram 1500 Pickup 2WD 14 $4,450
Dodge Ram 1500 Pickup 4WD 14 $4,450
Dodge Ram 1500 Pickup 4WD 14 $4,450

Conclusion

The least fuel efficient car of 2003 is the Ferrari Enzo Ferrari. It has a combined MPG of 8 and costs $9,250 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

We spend a lot of time collecting, cleaning, merging, and formatting the data that is shown on the site to be as useful to you as possible.

If you found the data or information on this page useful in your research, please use the tool below to properly cite or reference MPG Buddy as the source. We appreciate your support!

  • "The 100 Least Fuel-Efficient Cars in 2003". MPG Buddy. Accessed on October 5, 2022. http://mpgbuddy.com/least-fuel-efficient-cars-in-2003.

  • "The 100 Least Fuel-Efficient Cars in 2003". MPG Buddy, http://mpgbuddy.com/least-fuel-efficient-cars-in-2003. Accessed 5 October, 2022

  • The 100 Least Fuel-Efficient Cars in 2003. MPG Buddy. Retrieved from http://mpgbuddy.com/least-fuel-efficient-cars-in-2003.