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2024 Most and Least Efficient Cars

Most Efficient Cars by EPA Size Class
(including electric vehicles)
EPA Class Vehicle Combined
MPG
Two-Seaters
Two-Seaters
BMW Z4 sDrive30i
2.0 L, 4 cyl, Automatic (S8), Turbo
28
Minicompacts
Minicompacts
MINI Cooper Convertible
1.5 L, 3 cyl, Automatic (AM-S7), Turbo
32
Subcompacts
Subcompacts 120
Compacts
Compacts 105
Midsize
Midsize 140
Large
Large 137
Small Station Wagons
Small Station Wagons
Kia Soul Eco dynamics
2.0 L, 4 cyl, Automatic (variable gear ratios)
31
Midsize Station Wagons
Midsize Station Wagons
Audi A6 Allroad quattro
3.0 L, 6 cyl, Automatic (AM-S7), Turbo
25
Volvo V90CC B6 AWD
2.0 L, 4 cyl, Automatic (S8)
25
Most Efficient Cars by EPA Size Class
(excluding electric vehicles)
EPA Class Vehicle Combined
MPG
Two-Seaters
Two-Seaters
BMW Z4 sDrive30i
2.0 L, 4 cyl, Automatic (S8), Turbo
28
Minicompacts
Minicompacts
MINI Cooper Convertible
1.5 L, 3 cyl, Automatic (AM-S7), Turbo
32
Subcompacts
Subcompacts
Audi A3
2.0 L, 4 cyl, Automatic (AM-S7), Turbo
32
MINI Cooper Hardtop 2 door
1.5 L, 3 cyl, Automatic (AM-S7), Turbo
32
MINI Cooper Hardtop 4 door
1.5 L, 3 cyl, Automatic (AM-S7), Turbo
32
Compacts
Compacts
Toyota Corolla Hybrid
1.8 L, 4 cyl, Automatic (variable gear ratios)
50
Midsize
Midsize
Toyota Prius
2.0 L, 4 cyl, Automatic (variable gear ratios)
57
Large
Large
Honda Accord Hybrid
2.0 L, 4 cyl, Automatic (variable gear ratios)
48
Small Station Wagons
Small Station Wagons
Kia Soul Eco dynamics
2.0 L, 4 cyl, Automatic (variable gear ratios)
31
Midsize Station Wagons
Midsize Station Wagons
Audi A6 Allroad quattro
3.0 L, 6 cyl, Automatic (AM-S7), Turbo
25
Volvo V90CC B6 AWD
2.0 L, 4 cyl, Automatic (S8)
25
Least Efficient Cars by EPA Size Class
EPA Class Vehicle Combined
MPG
Two-Seaters
Two-Seaters
Bugatti Chiron Pur Sport
8.0 L, 16 cyl, Automatic (AM-S7), Turbo
9
Minicompacts
Minicompacts
Bentley Continental GTC
6.0 L, 12 cyl, Automatic (AM-S8), Turbo
14
Subcompacts
Subcompacts
Bentley Continental GT
6.0 L, 12 cyl, Automatic (AM-S8), Turbo
15
Compacts
Compacts
Mercedes-Benz AMG GT 63 4matic Plus
4.0 L, 8 cyl, Automatic 9-spd, Turbo
17
Midsize
Midsize
Bentley Flying Spur
6.0 L, 12 cyl, Automatic (AM-S8), Turbo
15
Cadillac CT5 V
6.2 L, 8 cyl, Manual 6-spd, Supercharger
15
Large
Large
Rolls-Royce Ghost
6.6 L, 12 cyl, Automatic (S8)
14
Rolls-Royce Ghost Black Badge
6.6 L, 12 cyl, Automatic (S8)
14
Rolls-Royce Ghost Extended
6.6 L, 12 cyl, Automatic (S8)
14
Rolls-Royce Phantom
6.7 L, 12 cyl, Automatic (S8)
14
Rolls-Royce Phantom Extended
6.7 L, 12 cyl, Automatic (S8)
14
Small Station Wagons
Small Station Wagons
Lamborghini Urus Performante
4.0 L, 8 cyl, Automatic (S8), Turbo
16
Midsize Station Wagons
Midsize Station Wagons
Rolls-Royce Cullinan
6.7 L, 12 cyl, Automatic (S8), Turbo
14
Rolls-Royce Cullinan Black Badge
6.7 L, 12 cyl, Automatic (S8), Turbo
14

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