The 100 Least Fuel-Efficient Cars in 2015

Have you ever wondered what the least fuel efficient cars manufactured in 2015 are? In this article, we'll list out the worst 100 cars from 2015 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 2015 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
Bugatti Veyron 10 $7,400
Chevrolet Express 2500 2WD Conversion... 12 $5,200
Chevrolet Express 3500 2WD Passenger 12 $5,200
GMC Savana 2500 2WD Conversion... 12 $5,200
GMC Savana 3500 2WD (Passenger) 12 $5,200
Lamborghini Aventador Roadster 12 $6,150
Bentley Mulsanne 13 $5,700
Chevrolet Express 2500 2WD Passenger 13 $4,800
Chevrolet Express 3500 2WD Passenger 13 $4,800
Ferrari F12 13 $5,700
Ferrari FF 13 $5,700
GMC Savana 2500 2WD (Passenger) 13 $4,800
GMC Savana 3500 2WD (Passenger) 13 $4,800
Lamborghini Aventador Coupe 13 $5,700
Lamborghini Veneno Roadster 13 $5,700
Mercedes-Benz G550 13 $5,700
Mercedes-Benz G63 AMG 13 $5,700
Aston Martin V12 Vantage S 14 $5,300
Audi R8 14 $5,300
Audi R8 Spyder 14 $5,300
Bentley Flying Spur 14 $5,300
Cadillac CTS 14 $5,300
Chevrolet Camaro 14 $5,300
Ferrari 458 Italia 14 $5,300
Ferrari 458 Speciale 14 $5,300
Ferrari 458 Speciale Spider 14 $5,300
Ferrari 458 Spider 14 $5,300
Lexus LX 570 14 $5,300
Mercedes-Benz GL63 AMG 14 $5,300
Nissan Armada 4WD 14 $4,450
Nissan Titan 4WD 14 $4,450
Rolls-Royce Phantom 14 $5,300
Rolls-Royce Phantom Coupe 14 $5,300
Rolls-Royce Phantom Drophead Coupe 14 $5,300
Rolls-Royce Phantom EWB 14 $5,300
Toyota Sequoia 4WD 14 $4,450
Aston Martin DB9 15 $4,950
Aston Martin V8 Vantage 15 $4,950
Aston Martin V8 Vantage S 15 $4,950
Aston Martin Vantage GT 15 $4,950
Bentley Continental GT 15 $4,950
Bentley Continental GT Convertible 15 $4,950
BMW 760Li 15 $4,950
Chevrolet Camaro 15 $4,950
Dodge Viper SRT 15 $4,950
Ferrari 458 Italia 15 $4,950
Ferrari 458 Speciale 15 $4,950
Ferrari 458 Speciale Spider 15 $4,950
Ferrari 458 Spider 15 $4,950
Infiniti QX80 4WD (over 6000 lbs cur... 15 $4,950
Jeep Grand Cherokee SRT8 4WD 15 $4,950
Maserati GranTurismo Convertible 15 $4,950
Mercedes-Benz C63 AMG Coupe 15 $4,950
Mercedes-Benz GL550 4matic 15 $4,950
Mercedes-Benz ML63 AMG 15 $4,950
Mercedes-Benz S65 AMG 15 $4,950
Mercedes-Benz S65 AMG Coupe 15 $4,950
Mercedes-Benz SLS AMG GT Coupe 15 $4,950
Mercedes-Benz SLS AMG GT Roadster 15 $4,950
Nissan Armada 2WD 15 $4,150
Nissan Titan 2WD 15 $4,150
Ram 1500 4WD 15 $4,650
Rolls-Royce Ghost 15 $4,950
Rolls-Royce Ghost EWB 15 $4,950
Rolls-Royce Wraith 15 $4,950
Toyota Land Cruiser Wagon 4WD 15 $4,150
Toyota Sequoia 2WD 15 $4,150
Toyota Sequoia 4WD FFV 15 $4,150
Toyota Tundra 2WD 15 $4,150
Toyota Tundra 4WD 15 $4,150
Toyota Tundra 4WD FFV 15 $4,150
Aston Martin V8 Vantage 16 $4,600
Aston Martin V8 Vantage S 16 $4,600
Aston Martin Vanquish 16 $4,600
Aston Martin Vantage GT 16 $4,600
Audi A8 L 16 $4,600
Audi R8 16 $4,600
Audi R8 Spyder 16 $4,600
Bentley Continental GT Convertible 16 $4,600
BMW M5 16 $4,600
BMW M6 Convertible 16 $4,600
BMW M6 Coupe 16 $4,600
BMW M6 Gran Coupe 16 $4,600
BMW X5 M 16 $4,600
BMW X6 M 16 $4,600
Cadillac CTS 16 $4,600
Cadillac Escalade 4WD 16 $3,900
Cadillac Escalade ESV 4WD 16 $3,900
Chevrolet Camaro 16 $4,600
Chevrolet Colorado Cab Chassis 2WD 16 $3,900
Chevrolet Corvette 16 $4,600
Dodge Challenger SRT8 16 $4,600
Dodge Challenger SRT8 16 $4,600
Dodge Charger SRT8 16 $4,600
Dodge Durango AWD 16 $4,350
Ford Expedition EL 4WD 16 $3,900
Ford Transit T150 Wagon 16 $3,900
Ford Transit T150 Wagon FFV 16 $3,900
GMC Canyon Cab Chassis 2WD 16 $3,900
GMC Yukon K1500 4WD 16 $3,900

Conclusion

The least fuel efficient car of 2015 is the Bugatti Veyron. It has a combined MPG of 10 and costs $7,400 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 2015". MPG Buddy. Accessed on December 9, 2022. http://mpgbuddy.com/least-fuel-efficient-cars-in-2015.

  • "The 100 Least Fuel-Efficient Cars in 2015". MPG Buddy, http://mpgbuddy.com/least-fuel-efficient-cars-in-2015. Accessed 9 December, 2022

  • The 100 Least Fuel-Efficient Cars in 2015. MPG Buddy. Retrieved from http://mpgbuddy.com/least-fuel-efficient-cars-in-2015.