Best MPG Cars 2018

best mpg cars $year

A key factor when buying a new car in 2018 is to find a model with good fuel economy to minimise running costs. In addition to saving direct fuel costs, cars with high MPG also have lower tail-pipe CO2 emissions and hence lower car tax and company car tax.



The list below shows the cars with best fuel economy available to buy new in 2018 across all categories. Electric and plug-in hybrid cars have been excluded from this list as they do not have a directly comparable MPG figure.

Use the search facility below to find best MPG by vehicle class or other criteria. If you wish to conduct a broader search, include electric cars in the results or search used cars go to the main car search page.

Your results
Key

Petrol
Diesel
Hybrid
Plug-in
Hybrid
Electric
NGC
Rating
NGC
Approved
MPG
Combined
Real MPG
(Estimated)
MPG
Equivalent

TOYOTA Prius 1.8 VVT-i Active (TRK) Auto

OTR £24,245 Large family Automatic
Compare
Official
MPG
87 est
Real
MPG
61 est
Fuel cost
/mile
6.9p

TOYOTA Prius 1.8 VVT-i Active Auto

OTR £24,245 Large family Automatic
Compare
Official
MPG
87 est
Real
MPG
61 est
Fuel cost
/mile
6.9p

PEUGEOT 508 Saloon 2.0 HDi HYbrid4 Allure ETG S&S 200

OTR £31,995 Large family Semi-automatic 6-speed
Urban MPG83
Ex-Urban MPG79
Compare
Official
MPG
81 est
Real
MPG
58 est
Fuel cost
/mile
7.4p

TOYOTA Yaris 1.5 VVT-i Active Hybrid Auto

OTR £16,575 Supermini Automatic
Compare
Official
MPG
80 est
Real
MPG
57 est
Fuel cost
/mile
7.3p

MERCEDES-BENZ C-Class Saloon C 300 h SE 7-speed G-Tronic

OTR £36,765 Executive Automatic 7-speed
Compare
Official
MPG
79 est
Real
MPG
56 est
Fuel cost
/mile
7.7p

TOYOTA C-HR 1.8 VVT-i Design Hybrid 122hp Auto

OTR £26,665 Crossover Automatic
Compare
Official
MPG
79 est
Real
MPG
55 est
Fuel cost
/mile
7.5p

HYUNDAI IONIQ 1.6 GDi Hybrid SE DCT

OTR £21,540 Large family Semi-automatic 6-speed
Urban MPG79
Ex-Urban MPG74
Compare
Official
MPG
79 est
Real
MPG
55 est
Fuel cost
/mile
7.5p

LEXUS CT200h CT 200h SE E-CVT

OTR £23,520 Small family Continuously Variable
Urban MPG79
Ex-Urban MPG81
Compare
Official
MPG
79 est
Real
MPG
55 est
Fuel cost
/mile
7.5p

MERCEDES-BENZ C-Class Estate C 300 h Sport 7-speed G-Tronic

OTR £39,960 Estate Automatic 7-speed
Compare
Official
MPG
75 est
Real
MPG
53 est
Fuel cost
/mile
8.1p

KIA Niro 1.6 GDi 1 139bhp DCT

OTR £21,635 Crossover Semi-automatic 6-speed
Urban MPG74
Ex-Urban MPG72
Compare
Official
MPG
74 est
Real
MPG
52 est
Fuel cost
/mile
7.9p

What is the source of these MPG figures?

MPG figures on the list of Best MPG Cars above are a combination of Official MPG figures and Real MPG figures estimated by Next Green Car.

The official MPG figures come from the New European Directive Cycle (NEDC). Performed on a rolling road, these official tests are used for emissions certification of light duty vehicles in Europe, and from which fuel economy figures are calculated (rather than measured). The official tests generate the familiar 'urban', 'extra-urban' and 'combined' official figures.

Urban - reflects city driving with lower speeds, frequent breaking, stop-start and higher gears resulting in the lowest MPG figure

Extra-urban - mirrors motorway driving and driving on country routes - higher speeds, infrequent stopping and lower gears. Hence this value is higher than the Urban or Combined

Combined - is an average of the figures from the urban and extra-urban tests weighted to take account of the miles driven in each.

In reality, drivers find it very hard, if not impossible to reach these MPG figures as the NEDC test is conducted in very specific conditions and does not reflect the real-world. Thus it should be seen as a comparative figure, rather than an absolute figure.

To provide a more realistic number, Next Green Car has calculated a Real MPG figure for all 50,000 models in the database. This figure is based on research into actual performance at a model level and involves the use of correction factors based on fuel type and year. See the Real MPG page for more information.

Other searches that may be of interest when comparing MPG values: Petrol cars with best MPG; Diesel cars with best MPG; 7-seaters with best MPG; and Best MPG cars under £10,000. Data in all of the search results are updated weekly from the Next Green Car database

Chris Lilly

Author:Chris Lilly
Date Updated:10th Sep 2018

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