Most Fuel-Efficient Cars

Vehicles ranked by the lowest combined fuel consumption our sources publish. Figures are as listed by each source and test cycles differ between markets.

11,811 vehicles

2018 BMW 3 Series
Sedan, Varies by configuration: Gasoline, Plug-in hybrid, Diesel
Varies by configuration: 2.0L 4-cylinder turbocharged (SIDI), 3.0L 6-cylinder turbocharged (SIDI), 2.0L 4-cylinder turbocharged (SIDI; PHEV), 2.0L 4-cylinder turbocharged · 255 hp (190 kW) · Varies by configuration: RWD, AWD
36 mpg (6.5 L/100 km) to 23 mpg (10.2 L/100 km)
2018 Honda Civic
Sedan, Gasoline
Varies by configuration: 1.5L 4-cylinder turbocharged (SIDI), 2.0L 4-cylinder, 2.0L 4-cylinder turbocharged (SIDI) · 158 hp (118 kW) · FWD
36 mpg (6.5 L/100 km) to 25 mpg (9.4 L/100 km)
2017 BMW 3 Series
Sedan, Varies by configuration: Gasoline, Plug-in hybrid, Diesel
Varies by configuration: 2.0L 4-cylinder turbocharged (SIDI), 3.0L 6-cylinder turbocharged (SIDI), 2.0L 4-cylinder turbocharged (SIDI; PHEV), 2.0L 4-cylinder turbocharged · 255 hp (190 kW) · Varies by configuration: RWD, AWD
36 mpg (6.5 L/100 km) to 23 mpg (10.2 L/100 km)
2017 Honda Fit
Wagon, Gasoline
1.5L 4-cylinder (SIDI) · FWD
36 mpg (6.5 L/100 km) to 32 mpg (7.4 L/100 km)
2017 Honda Civic
Sedan, Gasoline
Varies by configuration: 2.0L 4-cylinder, 1.5L 4-cylinder turbocharged (SIDI), 2.0L 4-cylinder turbocharged (SIDI) · 158 hp (118 kW) · FWD
36 mpg (6.5 L/100 km) to 25 mpg (9.4 L/100 km)
2017 Jaguar XE
Varies by configuration: Gasoline, Diesel
Varies by configuration: 2.0L 4-cylinder turbocharged (SIDI), 3.0L 6-cylinder supercharged (SIDI), 2.0L 4-cylinder turbocharged · Varies by configuration: RWD, AWD
36 mpg (6.5 L/100 km) to 23 mpg (10.2 L/100 km)
2016 Honda Fit
Wagon, Gasoline
1.5L 4-cylinder (SIDI) · FWD
36 mpg (6.5 L/100 km) to 32 mpg (7.4 L/100 km)
2016 Honda CR-Z
Hybrid
1.5L 4-cylinder · FWD
36 mpg (6.5 L/100 km) to 33 mpg (7.1 L/100 km)
2016 Scion iA
Gasoline
1.5L 4-cylinder (SIDI) · FWD
36 mpg (6.5 L/100 km) to 34 mpg (6.9 L/100 km)
2016 Mazda 2
Gasoline
1.5L 4-cylinder (SIDI) · FWD
36 mpg (6.5 L/100 km) to 34 mpg (6.9 L/100 km)
2015 BMW 3 Series
Sedan, Varies by configuration: Gasoline, Diesel, Hybrid
Varies by configuration: 2.0L 4-cylinder turbocharged (SIDI), 3.0L 6-cylinder turbocharged (SIDI), 2.0L 4-cylinder turbocharged · 255 hp (190 kW) · Varies by configuration: RWD, AWD
36 mpg (6.5 L/100 km) to 23 mpg (10.2 L/100 km)
2015 Honda Fit
Wagon, Gasoline
1.5L 4-cylinder (SIDI) · FWD
36 mpg (6.5 L/100 km) to 32 mpg (7.4 L/100 km)
2015 Smart fortwo
Varies by configuration: Gasoline, Electric
1.0L 3-cylinder · RWD
36 mpg (6.5 L/100 km)
2015 Honda CR-Z
Hybrid
1.5L 4-cylinder (HEV) · FWD
36 mpg (6.5 L/100 km) to 33 mpg (7.1 L/100 km)
2014 Honda CR-Z
Hybrid
1.5L 4-cylinder · FWD
36 mpg (6.5 L/100 km) to 33 mpg (7.1 L/100 km)
2014 BMW 3 Series
Wagon, Varies by configuration: Gasoline, Diesel, Hybrid
Varies by configuration: 2.0L 4-cylinder turbocharged (SIDI), 3.0L 6-cylinder turbocharged (SIDI), 2.0L 4-cylinder turbocharged · 255 hp (190 kW) · Varies by configuration: AWD, RWD
36 mpg (6.5 L/100 km) to 23 mpg (10.2 L/100 km)
2013 Honda CR-Z
Hybrid
1.5L 4-cylinder · FWD
36 mpg (6.5 L/100 km) to 33 mpg (7.1 L/100 km)
2013 Smart fortwo
Varies by configuration: Gasoline, Electric
1.0L 3-cylinder · RWD
36 mpg (6.5 L/100 km)
2012 Honda CR-Z
Hybrid
1.5L 4-cylinder · FWD
36 mpg (6.5 L/100 km) to 34 mpg (6.9 L/100 km)
2012 Smart fortwo
Gasoline
1.0L 3-cylinder · RWD
36 mpg (6.5 L/100 km)
2012 Hyundai Sonata
Varies by configuration: Gasoline, Hybrid
Varies by configuration: 2.0L 4-cylinder turbocharged (SIDI), 2.4L 4-cylinder (SIDI), 2.4L 4-cylinder · FWD
36 mpg (6.5 L/100 km) to 26 mpg (9.0 L/100 km)
2012 Kia Optima
Varies by configuration: Gasoline, Hybrid
Varies by configuration: 2.0L 4-cylinder turbocharged (SIDI), 2.4L 4-cylinder (SIDI), 2.4L 4-cylinder · FWD
36 mpg (6.5 L/100 km) to 26 mpg (9.0 L/100 km)
2011 Smart fortwo
Varies by configuration: Gasoline, Electric
1.0L 3-cylinder · RWD
36 mpg (6.5 L/100 km)
2011 Honda CR-Z
Hybrid
1.5L 4-cylinder · FWD
36 mpg (6.5 L/100 km) to 34 mpg (6.9 L/100 km)