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2017 Most and Least Efficient Cars

Most Efficient Cars by EPA Size Class
(including electric vehicles)
EPA Class Vehicle Combined
MPG
Two-Seaters
Two-Seaters
smart fortwo cabriolet
0.9 L, 3 cyl, Auto(AM6), Premium Gas
35
smart fortwo coupe
0.9 L, 3 cyl, Auto(AM6), Premium Gas
35
Minicompacts
Minicompacts
Fiat 500e
A-1, 82 kW AC Induction
112
Subcompacts
Subcompacts
BMW i3 BEV
A-1, 125 kW AC Induction
124
Compacts
Compacts
Chevrolet Volt
1.5 L, 4 cyl, Automatic (variable gear ratios)
77
Midsize
Midsize 136
Large
Large
Hyundai Ioniq Blue
1.6 L, 4 cyl, Auto(AM6)
58
Small Station Wagons
Small Station Wagons
Chevrolet Bolt
A-1, 150 kW ACPM
119
Midsize Station Wagons
Midsize Station Wagons
Toyota Prius v
1.8 L, 4 cyl, Automatic (variable gear ratios), Regular Gas
41
Most Efficient Cars by EPA Size Class
(excluding electric vehicles)
EPA Class Vehicle Combined
MPG
Two-Seaters
Two-Seaters
smart fortwo cabriolet
0.9 L, 3 cyl, Auto(AM6), Premium Gas
35
smart fortwo coupe
0.9 L, 3 cyl, Auto(AM6), Premium Gas
35
Minicompacts
Minicompacts
Fiat 500
1.4 L, 4 cyl, Manual 5-spd
34
Subcompacts
Subcompacts
Toyota Yaris iA
1.5 L, 4 cyl, Automatic (S6)
35
Ford Fiesta SFE FWD
1.0 L, 3 cyl, Manual 5-spd, Turbo
35
Compacts
Compacts
Lexus CT 200h
1.8 L, 4 cyl, Automatic (variable gear ratios)
42
Midsize
Midsize
Midsize
Toyota Prius Eco
1.8 L, 4 cyl, Automatic (variable gear ratios)
56
Large
Large
Hyundai Ioniq Blue
1.6 L, 4 cyl, Auto(AM6)
58
Small Station Wagons
Small Station Wagons
Kia Niro
1.6 L, 4 cyl, Auto(AM6)
49
Midsize Station Wagons
Midsize Station Wagons
Toyota Prius v
4 cyl, 1.8 L, Automatic (variable gear ratios)
41
Least Efficient Cars by EPA Size Class
(excluding electric vehicles)
EPA Class Vehicle Combined
MPG
Two-Seaters
Two-Seaters
Aston Martin V12 Vantage S
6.0 L, 12 cyl, Manual(M7)
12
Ferrari F12 tdf
6.3 L, 12 cyl, Auto(AM7)
12
Lamborghini Aventador Coupe LP740-4
6.5 L, 12 cyl, Auto(AM-S7)
12
Lamborghini Aventador Roadster LP740-4
6.5 L, 12 cyl, Auto(AM-S7)
12
Minicompacts
Minicompacts
Ferrari GTC4Lusso
6.3 L, 12 cyl, Auto(AM7)
12
Ferrari GTC4Lusso (w / Start-Stop)
6.3 L, 12 cyl, Auto(AM7)
12
Subcompacts
Subcompacts
Bentley Continental GT Convertible
6.0 L, 12 cyl, Automatic (S8), Turbo
15
Maserati GranTurismo Convertible
4.7 L, 8 cyl, Automatic 6-spd
15
Compacts
Compacts
Rolls-Royce Dawn
6.6 L, 12 cyl, Automatic (S8)
14
Rolls-Royce Phantom Coupe
6.7 L, 12 cyl, Automatic (S8)
14
Rolls-Royce Phantom Drophead Coupe
6.7 L, 12 cyl, Automatic (S8)
14
Midsize
Midsize
Bentley Mulsanne EWB
6.8 L, 8 cyl, Automatic (S8), Turbo
13
Large
Large
Rolls-Royce Ghost
6.6 L, 12 cyl, Automatic (S8)
14
Rolls-Royce Ghost EWB
6.6 L, 12 cyl, Automatic (S8)
14
Rolls-Royce Phantom
6.7 L, 12 cyl, Automatic (S8)
14
Rolls-Royce Phantom EWB
6.7 L, 12 cyl, Automatic (S8)
14
Small Station Wagons
Small Station Wagons
Infiniti QX50
3.7 L, 6 cyl, Automatic (S7)
20
Infiniti QX50 AWD
3.7 L, 6 cyl, Automatic (S7)
20
Midsize Station Wagons
Midsize Station Wagons
Nissan Murano AWD
3.5 L, 6 cyl, Auto(AV-S7)
24
Nissan Murano FWD
3.5 L, 6 cyl, Auto(AV-S7)
24