The What Car? True MPG technicians test new cars every week. While the official Government figures come from a laboratory test, our team takes each car on a thorough road test that produces the data needed to deliver real-world MPG figures.
Here’s our round-up of the most fuel efficient cars we’ve tested so far in 2015. All achieved more than 54.0mpg. Almost all the cars on this list are diesel-powered, but there is one petrol hybrid that makes it into the top 10.
1. Vauxhall Corsa 1.3 CDTi 95 5dr – official 85.6mpg; True MPG 60.0mpg
The Vauxhall Corsa is the only car tested this year that has achieved 60.0mpg in our real-world tests. It’s a good small car that’s spacious, well priced and well equipped. Judging by this True MPG result, it should also prove cheap to run.
2. Hyundai i20 1.4 CRDi 90 – official 68.9mpg; True MPG 59.4mpg
The Hyundai i20 is a sensible, well-priced small car that’s spacious and well-equipped. It also comes with a five-year warranty. The 1.4-litre diesel engine is economical and reasonably powerful, although its rivals are more refined.
3. Volkswagen Golf SV 1.6 TDI 110 Bluemotion – official 72.4mpg; True MPG 57.8mpg
The Volkswagen Golf SV is more spacious than the standard Golf hatch on which it’s based. It’s also one of the best MPVs to drive. With a True MPG figure of 57.8mpg it should also prove cheap to run.
4. Skoda Fabia 1.4 TDI 90 – official 83.1mpg; True MPG 57.7mpg
Our 2015 Car of the Year is a great small car that makes this round-up when powered by the lower-powered 1.4-litre diesel engine. It’s spacious, well equipped, good to drive and economical.
5. BMW 116d Efficient Dynamics Plus – official 83.1mpg; True MPG 55.4mpg
The BMW 1 Series stands out from the rest of the class by being the only family hatchback that’s rear-wheel-drive. It’s good to drive, comfortable and surprisingly economical. The 116d Efficient Dynamics Plus is the most efficient model in the range and achieved 55.4mpg in our real-world tests.
6. Hyundai i20 1.1 CRDi – official 70.6mpg; True MPG 55.1mpg
This is the second appearance of the Hyundai i20. This time it’s powered by the 1.1-litre diesel engine which is economical but can’t match the more powerful 1.4 in True MPG tests.
7. Toyota Prius+ – official 68.9mpg; True MPG 55.0mpg
The Toyota Prius+ is the only car on this list that isn’t diesel-powered. This seven-seat MPV is a petrol hybrid that’s got a decent amount of interior space but is expensive to buy.
8. Mazda 6 2.2D Skyactiv-D 150 – official 72.4mpg; True MPG 54.8mpg
The Mazda 6 is one of the best executive saloons on the market. It’s economical, cheap to run and the 2.2-litre diesel engine has plenty of power.
9. Seat Leon ST 2.0 TDI CR 184 – official 65.7mpg; True MPG 54.2mpg
If you’re looking for a great all-round estate car, you can’t go too far wrong with the Seat Leon ST. It comes with lots of standard equipment and it’s got a big boot. There are also some good deals to be found through internet brokers. We’d recommend sticking with the 1.6 TDI, but even if you do go for the more powerful diesel, you can expect low fuel bills.
10. Dacia Logan MCV 1.5 dCi – official 74.3mpg; True MPG 54.2mpg
The diesel-powered Logan MCV is a budget estate car that offers a massive amount of space. With the rear seats in place the boot offers 573 litres of space and with the seats folded it grows to a huge 1518.
Visit whatcar.com/truempg to see the full range of cars we’ve tested to find out what you really can expect to achieve on UK roads.