Plenty of vintage vehicles have aged like fine wine—and appreciated in value, too. But their fuel efficiency? It's lacking in a world where the average vehicle now gets 25 or more miles for every gallon of fuel.
CheapInsurance.com used data from the Environmental Protection Agency to find the least fuel-efficient car and truck for every model year since 1975. Years represent the model year, and the EPA determined the most fuel-efficient vehicles by their overall miles per gallon. Cars include sedans, while trucks include pickups, truck SUVs, vans, and minivans.
The least fuel-efficient vehicles of the last five decades are a who's who of sexy luxury sedans and high-performance coupes like the Lamborghini Countach. In terms of trucks, Dodge's pickup trucks and cargo and conversion vans earn a number of spots on this ranking.
The National Highway Traffic Safety Administration rolled out regulations for automakers in 1975 requiring them to advertise the fuel efficiency of each of their vehicles, also known as fuel economy. Regulations like these, coupled with requirements that manufacturers reduce emissions, stemmed from dense smog that strangled urban areas like Los Angeles in the 1950s and 1960s.
In the decades since, regulations have significantly curbed vehicle emissions, which have been scientifically proven to contribute to our changing climate. Typical vehicle CO2 emissions have gone from 661 grams per mile in 1975 to 256 grams per mile in 2022, according to EPA data.
And to give a sense of how far manufacturers have come in terms of fuel economy, the typical fuel economy of a vehicle today is double what it was in 1975. Based on February 2023 urban gas prices, that efficiency saves drivers about $13 per 100 miles. Yet even today's vehicle lineup includes a few vehicles that just don't move the needle in terms of getting more bang for your buck at the gas pump.
Read on to see which vehicles burned the most gas just to take passengers a couple of miles throughout recent history.
FernandoV // Shutterstock
1 / 48- Least fuel-efficient car: Oldsmobile Toronado
--- Overall mileage: 8.4 miles per gallon
--- Highway mileage: 9.4 mpg
--- City mileage: 7.7 mpg
- Least fuel-efficient truck: Ford F-250
--- Overall mileage: 7.6 miles per gallon
--- Highway mileage: 7.8 mpg
--- City mileage: 7.5 mpg
Sue Thatcher // Shutterstock
2 / 48- Least fuel-efficient car: Jensen Interceptor
--- Overall mileage: 8.6 miles per gallon
--- Highway mileage: 9.9 mpg
--- City mileage: 7.7 mpg
- Least fuel-efficient truck: Chevy P20 Step
--- Overall mileage: 7.8 miles per gallon
--- Highway mileage: 8.5 mpg
--- City mileage: 7.3 mpg
Maxim Gorishniak // Shutterstock
3 / 48- Least fuel-efficient car: Rolls Royce
--- Overall mileage: 8.3 miles per gallon
--- Highway mileage: 8.9 mpg
--- City mileage: 7.8 mpg
- Least fuel-efficient truck: Toyota Land Cruiser
--- Overall mileage: 8 miles per gallon
--- Highway mileage: 8.9 mpg
--- City mileage: 7.4 mpg
VanderWolf Images // Shutterstock
4 / 48- Least fuel-efficient car: Dodge Monaco
--- Overall mileage: 8 miles per gallon
--- Highway mileage: 8.7 mpg
--- City mileage: 7.5 mpg
- Least fuel-efficient trucks: Chevy Suburban, GMC Sierra 2500
--- Overall mileage: 8 miles per gallon
--- Highway mileage: 8.1 mpg
--- City mileage: 8 mpg
Colin Peachey // Shutterstock
5 / 48- Least fuel-efficient car: Aston Martin V8
--- Overall mileage: 7.9 miles per gallon
--- Highway mileage: 9.7 mpg
--- City mileage: 6.8 mpg
- Least fuel-efficient truck: Ford F-Series
--- Overall mileage: 7.9 miles per gallon
--- Highway mileage: 7.7 mpg
--- City mileage: 8.1 mpg
Christopher Furlong // Getty Images
6 / 48- Least fuel-efficient car: Aston Martin 79
--- Overall mileage: 7.9 miles per gallon
--- Highway mileage: 9.7 mpg
--- City mileage: 6.8 mpg
- Least fuel-efficient truck: GM chassis cab
--- Overall mileage: 8.4 miles per gallon
--- Highway mileage: 8.8 mpg
--- City mileage: 8.1 mpg
Denver Post // Getty Images
7 / 48- Least fuel-efficient cars: Rolls-Royce Camargue, Rolls-Royce Corniche
--- Overall mileage: 8.6 miles per gallon
--- Highway mileage: 9.5 mpg
--- City mileage: 8 mpg
- Least fuel-efficient truck: Dodge B250 Conversion Van
--- Overall mileage: 9.4 miles per gallon
--- Highway mileage: 10.1 mpg
--- City mileage: 9 mpg
Fairchild Archive // Getty Images
8 / 48- Least fuel-efficient car: Maserati Quattroporte
--- Overall mileage: 8.5 miles per gallon
--- Highway mileage: 9.8 mpg
--- City mileage: 7.6 mpg
- Least fuel-efficient truck: GM G30/G35 SportVan 2WD
--- Overall mileage: 10.1 miles per gallon
--- Highway mileage: 10.8 mpg
--- City mileage: 9.5 mpg
Jacques Demarthon/AFP via Getty Images
9 / 48- Least fuel-efficient car: Maserati Quattroporte
--- Overall mileage: 8.5 miles per gallon
--- Highway mileage: 9.8 mpg
--- City mileage: 7.6 mpg
- Least fuel-efficient truck: Ford E250 Econoline 2
--- Overall mileage: 10.3 miles per gallon
--- Highway mileage: 10.8 mpg
--- City mileage: 9.8 mpg
Fabrice Coffrini/AFP via Getty Images
10 / 48- Least fuel-efficient car: Maserati Quattroporte
--- Overall mileage: 8.5 miles per gallon
--- Highway mileage: 9.8 mpg
--- City mileage: 7.6 mpg
- Least fuel-efficient truck: Dodge B350 Wagon 2WD
--- Overall mileage: 9.5 miles per gallon
--- Highway mileage: 10.7 mpg
--- City mileage: 8.7 mpg
colin grice // Shutterstock
11 / 48- Least fuel-efficient car: Maserati Quattroporte
--- Overall mileage: 8.5 miles per gallon
--- Highway mileage: 9.8 mpg
--- City mileage: 7.6 mpg
- Least fuel-efficient truck: Ford E250 Econoline 2
--- Overall mileage: 9.6 miles per gallon
--- Highway mileage: 9.6 mpg
--- City mileage: 9.5 mpg
Heritage Images // Getty Images
12 / 48- Least fuel-efficient car: Lamborghini Countach
--- Overall mileage: 7.5 miles per gallon
--- Highway mileage: 10.4 mpg
--- City mileage: 6.1 mpg
- Least fuel-efficient truck: Dodge B350 Wagon 2WD
--- Overall mileage: 10.4 miles per gallon
--- Highway mileage: 11.2 mpg
--- City mileage: 9.8 mpg
Tim Graham // Getty Images
13 / 48- Least fuel-efficient car: Lamborghini Countach
--- Overall mileage: 7.5 miles per gallon
--- Highway mileage: 10.4 mpg
--- City mileage: 6.1 mpg
- Least fuel-efficient truck: Dodge AW150 Ramcharger
--- Overall mileage: 10 miles per gallon
--- Highway mileage: 11.2 mpg
--- City mileage: 9.2 mpg
Heritage Images // Getty Images
14 / 48- Least fuel-efficient car: Lamborghini Countach
--- Overall mileage: 7.5 miles per gallon
--- Highway mileage: 10.4 mpg
--- City mileage: 6.1 mpg
- Least fuel-efficient trucks: Dodge W100/W150 pickup, Dodge W250 pickup 4WD
--- Overall mileage: 9.8 miles per gallon
--- Highway mileage: 10.6 mpg
--- City mileage: 9.2 mpg
Heritage Images // Getty Images
15 / 48- Least fuel-efficient car: Lamborghini Countach
--- Overall mileage: 7.5 miles per gallon
--- Highway mileage: 10.3 mpg
--- City mileage: 6 mpg
- Least fuel-efficient truck: Dodge B350 Wagon 2WD
--- Overall mileage: 10.2 miles per gallon
--- Highway mileage: 10.9 mpg
--- City mileage: 9.7 mpg
John Keeble // Getty Images
16 / 48- Least fuel-efficient car: Aston Martin Lagonda
--- Overall mileage: 9.2 miles per gallon
--- Highway mileage: 10.7 mpg
--- City mileage: 8.2 mpg
- Least fuel-efficient truck: Chevy C1500 pickup 2WD
--- Overall mileage: 10 miles per gallon
--- Highway mileage: 10.8 mpg
--- City mileage: 9.3 mpg
Dave Benett // Getty Images
17 / 48- Least fuel-efficient car: Vector W8
--- Overall mileage: 8.5 miles per gallon
--- Highway mileage: 10.5 mpg
--- City mileage: 7.2 mpg
- Least fuel-efficient truck: Dodge W250 pickup 4WD
--- Overall mileage: 10.4 miles per gallon
--- Highway mileage: 12.3 mpg
--- City mileage: 9.1 mpg
Denise Truscello/Getty Images for Wynn Las Vegas
18 / 48- Least fuel-efficient car: Vector W8
--- Overall mileage: 8.5 miles per gallon
--- Highway mileage: 10.5 mpg
--- City mileage: 7.2 mpg
- Least fuel-efficient truck: Dodge W250 pickup 4WD
--- Overall mileage: 10.4 miles per gallon
--- Highway mileage: 11.4 mpg
--- City mileage: 9.6 mpg
Ethan Miller // Getty Images
19 / 48- Least fuel-efficient car: Vector W8
--- Overall mileage: 8.5 miles per gallon
--- Highway mileage: 10.4 mpg
--- City mileage: 7.1 mpg
- Least fuel-efficient truck: Chevy C1500 pickup 2WD
--- Overall mileage: 10.5 miles per gallon
--- Highway mileage: 12 mpg
--- City mileage: 9.3 mpg
Heritage Images // Getty Images
20 / 48- Least fuel-efficient car: Lamborghini Diablo
--- Overall mileage: 10.9 miles per gallon
--- Highway mileage: 13.7 mpg
--- City mileage: 9 mpg
- Least fuel-efficient truck: Dodge B150/B250 Wagon
--- Overall mileage: 12.2 miles per gallon
--- Highway mileage: 13.8 mpg
--- City mileage: 11 mpg
John_Silver // Shutterstock
21 / 48- Least fuel-efficient car: Ferrari F50
--- Overall mileage: 8.7 miles per gallon
--- Highway mileage: 10.7 mpg
--- City mileage: 7.3 mpg
- Least fuel-efficient truck: Dodge B3500 Wagon 2WD
--- Overall mileage: 12.2 miles per gallon
--- Highway mileage: 14.1 mpg
--- City mileage: 10.7 mpg
Artur Widak/NurPhoto via Getty Images
22 / 48- Least fuel-efficient car: Avtech Vector M12
--- Overall mileage: 10.1 miles per gallon
--- Highway mileage: 12.2 mpg
--- City mileage: 8.5 mpg
- Least fuel-efficient truck: Dodge B3500 Wagon 2WD
--- Overall mileage: 12.2 miles per gallon
--- Highway mileage: 14.1 mpg
--- City mileage: 10.7 mpg
Tony Bock // Getty Images
23 / 48- Least fuel-efficient car: Lamborghini Diablo
--- Overall mileage: 10.7 miles per gallon
--- Highway mileage: 13.6 mpg
--- City mileage: 8.7 mpg
- Least fuel-efficient truck: Dodge B3500 Wagon 2WD
--- Overall mileage: 12 miles per gallon
--- Highway mileage: 14.1 mpg
--- City mileage: 10.3 mpg
Antonio RIBEIRO // Getty Images
24 / 48- Least fuel-efficient car: Ferrari 550 Maranello
--- Overall mileage: 10.8 miles per gallon
--- Highway mileage: 14.1 mpg
--- City mileage: 8.6 mpg
- Least fuel-efficient truck: Dodge RAM 1500 pickup 4WD
--- Overall mileage: 12.9 miles per gallon
--- Highway mileage: 15.5 mpg
--- City mileage: 10.9 mpg
Heritage Images // Getty Images
25 / 48- Least fuel-efficient car: Ferrari 550 Maranello
--- Overall mileage: 10.5 miles per gallon
--- Highway mileage: 13.4 mpg
--- City mileage: 8.5 mpg
- Least fuel-efficient trucks: Dodge Durango 4WD, Dodge RAM 1500 pickup 4WD
--- Overall mileage: 13 miles per gallon
--- Highway mileage: 15.5 mpg
--- City mileage: 11 mpg
Heritage Images // Getty Images
26 / 48- Least fuel-efficient car: Ferrari 550 Maranello
--- Overall mileage: 9.9 miles per gallon
--- Highway mileage: 12.4 mpg
--- City mileage: 7.9 mpg
- Least fuel-efficient truck: Land Rover Range Rover
--- Overall mileage: 12.6 miles per gallon
--- Highway mileage: 14.3 mpg
--- City mileage: 11.1 mpg
Boston Herald // Getty Images
27 / 48- Least fuel-efficient car: Ferrari 550 Maranello-Barche
--- Overall mileage: 9.8 miles per gallon
--- Highway mileage: 12.4 mpg
--- City mileage: 7.9 mpg
- Least fuel-efficient truck: GMC Sierra 1500 4WD
--- Overall mileage: 11.8 miles per gallon
--- Highway mileage: 13.3 mpg
--- City mileage: 10.4 mpg
Heritage Images // Getty Images
28 / 48- Least fuel-efficient car: Lamborghini Murcielago
--- Overall mileage: 10.1 miles per gallon
--- Highway mileage: 12 mpg
--- City mileage: 8.4 mpg
- Least fuel-efficient truck: Dodge RAM 1500 pickup 4WD
--- Overall mileage: 12.4 miles per gallon
--- Highway mileage: 14.5 mpg
--- City mileage: 10.5 mpg
Heritage Images // Getty Images
29 / 48- Least fuel-efficient car: Enzo Ferrari
--- Overall mileage: 9 miles per gallon
--- Highway mileage: 11.6 mpg
--- City mileage: 7.1 mpg
- Least fuel-efficient truck: Chevy Cargo Van G1500-2500 2WD
--- Overall mileage: 10.9 miles per gallon
--- Highway mileage: 13.2 mpg
--- City mileage: 8.9 mpg
Heritage Images // Getty Images
30 / 48- Least fuel-efficient car: Lamborghini Murcielago
--- Overall mileage: 10.3 miles per gallon
--- Highway mileage: 12.5 mpg
--- City mileage: 8.4 mpg
- Least fuel-efficient trucks: Chevy Cargo Van G1500-2500 2WD, Chevy Savana Cargo Van 2WD
--- Overall mileage: 10.4 miles per gallon
--- Highway mileage: 12.5 mpg
--- City mileage: 8.5 mpg
J. Emilio Flores // Getty Images
31 / 48- Least fuel-efficient car: Lamborghini Murcielago
--- Overall mileage: 10.3 miles per gallon
--- Highway mileage: 12.5 mpg
--- City mileage: 8.3 mpg
- Least fuel-efficient truck: Dodge RAM 1500 pickup 2WD
--- Overall mileage: 9.8 miles per gallon
--- Highway mileage: 11.5 mpg
--- City mileage: 8.2 mpg
FREDERICK FLORIN // Getty Images
32 / 48- Least fuel-efficient car: Bugatti Veyron
--- Overall mileage: 10.3 miles per gallon
--- Highway mileage: 13.8 mpg
--- City mileage: 7.8 mpg
- Least fuel-efficient truck: Dodge RAM 1500 pickup 2WD
--- Overall mileage: 9.8 miles per gallon
--- Highway mileage: 11.5 mpg
--- City mileage: 8.2 mpg
M. Phillips // Getty Images
33 / 48- Least fuel-efficient car: Lamborghini Murcielago
--- Overall mileage: 10.4 miles per gallon
--- Highway mileage: 12.8 mpg
--- City mileage: 8.3 mpg
- Least fuel-efficient truck: Mercedes-Benz G-Class G55 AMG
--- Overall mileage: 12.2 miles per gallon
--- Highway mileage: 13.5 mpg
--- City mileage: 10.8 mpg
Duffy-Marie Arnoult // Getty Images
34 / 48- Least fuel-efficient car: Bugatti Veyron
--- Overall mileage: 10.1 miles per gallon
--- Highway mileage: 13 mpg
--- City mileage: 7.8 mpg
- Least fuel-efficient truck: Mercedes-Benz G-Class G55 AMG
--- Overall mileage: 12.2 miles per gallon
--- Highway mileage: 13.5 mpg
--- City mileage: 10.8 mpg
Alexandra Troubniikoff // Getty Images
35 / 48- Least fuel-efficient car: Lamborghini Murcielago Roadster
--- Overall mileage: 10.4 miles per gallon
--- Highway mileage: 12.8 mpg
--- City mileage: 8.3 mpg
- Least fuel-efficient truck: Mercedes-Benz M-Class ML63 AMG
--- Overall mileage: 12.4 miles per gallon
--- Highway mileage: 14.4 mpg
--- City mileage: 10.5 mpg
Ted Soqui // Getty Images
36 / 48- Least fuel-efficient car: Bugatti Veyron
--- Overall mileage: 10.1 miles per gallon
--- Highway mileage: 13 mpg
--- City mileage: 7.8 mpg
- Least fuel-efficient truck: Mercedes-Benz G-Class G55 AMG
--- Overall mileage: 12.2 miles per gallon
--- Highway mileage: 13.6 mpg
--- City mileage: 10.8 mpg
NICHOLAS RATZENBOECK/AFP // Getty Images
37 / 48- Least fuel-efficient car: Ferrari 612 Scaglietti
--- Overall mileage: 12.4 miles per gallon
--- Highway mileage: 16 mpg
--- City mileage: 9.6 mpg
- Least fuel-efficient truck: Ford E-Series Van (Propane-fueled)
--- Overall mileage: 6.7 miles per gallon
--- Highway mileage: 6.7 mpg
--- City mileage: 6.6 mpg
Jean Marc ZAORSKI // Getty Images
38 / 48- Least fuel-efficient car: Bugatti Veyron
--- Overall mileage: 11.2 miles per gallon
--- Highway mileage: 14.8 mpg
--- City mileage: 8.4 mpg
- Least fuel-efficient truck: Ford E-Series Van (Propane-fueled)
--- Overall mileage: 9.1 miles per gallon
--- Highway mileage: 9.3 mpg
--- City mileage: 8.9 mpg
Thomas Lohnes // Getty Images
39 / 48- Least fuel-efficient car: Bugatti Veyron
--- Overall mileage: 11.2 miles per gallon
--- Highway mileage: 14.8 mpg
--- City mileage: 8.4 mpg
- Least fuel-efficient truck: Ford E-Series Van (Propane-fueled)
--- Overall mileage: 9.1 miles per gallon
--- Highway mileage: 9.3 mpg
--- City mileage: 8.9 mpg
Raymond Boyd // Getty Images
40 / 48- Least fuel-efficient car: Bugatti Veyron
--- Overall mileage: 11.2 miles per gallon
--- Highway mileage: 14.8 mpg
--- City mileage: 8.4 mpg
- Least fuel-efficient truck: Ford E-Series Van (Propane-fueled)
--- Overall mileage: 9.1 miles per gallon
--- Highway mileage: 9.3 mpg
--- City mileage: 8.9 mpg
Martyn Lucy // Getty Images
41 / 48- Least fuel-efficient car: Lamborghini Aventador Roadster
--- Overall mileage: 12.7 miles per gallon
--- Highway mileage: 16.2 mpg
--- City mileage: 9.8 mpg
- Least fuel-efficient trucks: Chevy Cargo Van G3500 2WD, Chevy Savana Cargo Van 2WD
--- Overall mileage: 12.7 miles per gallon
--- Highway mileage: 15.1 mpg
--- City mileage: 10.4 mpg
Martyn Lucy // Getty Images
42 / 48- Least fuel-efficient car: Ferrari F12
--- Overall mileage: 12.9 miles per gallon
--- Highway mileage: 14.8 mpg
--- City mileage: 11 mpg
- Least fuel-efficient truck: Mercedes-Benz AMG G65
--- Overall mileage: 11.9 miles per gallon
--- Highway mileage: 13.1 mpg
--- City mileage: 10.6 mpg
Kaukola Photography // Shutterstock
43 / 48- Least fuel-efficient car: Lamborghini Aventador Coupe LP740-4
--- Overall mileage: 12.7 miles per gallon
--- Highway mileage: 16.3 mpg
--- City mileage: 9.8 mpg
- Least fuel-efficient truck: Mercedes-Benz G-Class G 550 4x4 SUV
--- Overall mileage: 10.8 miles per gallon
--- Highway mileage: 10.9 mpg
--- City mileage: 10.6 mpg
VanderWolf Images // Shutterstock
44 / 48- Least fuel-efficient car: Bugatti Chiron
--- Overall mileage: 11.2 miles per gallon
--- Highway mileage: 14.1 mpg
--- City mileage: 8.8 mpg
- Least fuel-efficient truck: Mercedes-Benz G-Class G 550 4x4 SUV
--- Overall mileage: 10.8 miles per gallon
--- Highway mileage: 10.9 mpg
--- City mileage: 10.6 mpg
VanderWolf Images // Shutterstock
45 / 48- Least fuel-efficient car: Bugatti Chiron
--- Overall mileage: 11.2 miles per gallon
--- Highway mileage: 14.1 mpg
--- City mileage: 8.8 mpg
- Least fuel-efficient truck: Mercedes-Benz AMG GLE 63
--- Overall mileage: 12 miles per gallon
--- Highway mileage: 14.3 mpg
--- City mileage: 9.8 mpg
VanderWolf Images // Shutterstock
46 / 48- Least fuel-efficient car: Bugatti Divo
--- Overall mileage: 10.6 miles per gallon
--- Highway mileage: 12.9 mpg
--- City mileage: 8.6 mpg
- Least fuel-efficient truck: Ford F150 pickup 4WD
--- Overall mileage: 12.8 miles per gallon
--- Highway mileage: 15.2 mpg
--- City mileage: 10.6 mpg
Jack Skeens // Shutterstock
47 / 48- Least fuel-efficient car: Bugatti Chiron Pur Sport
--- Overall mileage: 9.3 miles per gallon
--- Highway mileage: 11 mpg
--- City mileage: 7.7 mpg
- Least fuel-efficient truck: Dodge Ram 1500 TRX 4X4
--- Overall mileage: 12.2 miles per gallon
--- Highway mileage: 14.1 mpg
--- City mileage: 10.4 mpg
Martyn Lucy // Getty Images
48 / 48- Least fuel-efficient cars: Bugatti Chiron Super Sport, Bugatti Chiron Pur Sport
--- Overall mileage: 9.4 miles per gallon
--- Highway mileage: 11.2 mpg
--- City mileage: 7.8 mpg
- Least fuel-efficient truck: Dodge Ram 1500 TRX 4X4
--- Overall mileage: 12.3 miles per gallon
--- Highway mileage: 14.2 mpg
--- City mileage: 10.5 mpg
Data reporting by Paxtyn Merten. Story editing by Jeff Inglis. Copy editing by Tim Bruns. Photo selection by Clarese Moller.
