True MPG: best and worst cars revealed
What Car?'s laboratory tests use real-world driving routes to show what fuel economy you can really expect from your car. So, what are the best and worst performers?...
4. Seat Leon 1.6 TDI 110 Ecomotive
Official fuel economy; 78.5mpg; True MPG 56.0; Shortfall: 28.7%
The Leon is a stylish family car that's also practical, good to drive and well priced. And when it comes to real-world fuel economy, the 1.6-litre diesel version is good enough to take our fourth spot.
3. Vauxhall Astra 1.6 CDTi 110 Ecoflex
Official fuel economy: 83.1mpg; True MPG 56.3; Shortfall: 32.2%
Like the Leon, the latest Vauxhall Astra is a well-rounded, good value hatchback that offers plenty of room for the family. And its True MPG of 56.3mpg makes it even kinder to your wallet.
2. Suzuki Celerio 1.0
Official fuel economy: 65.7mpg; True MPG 57.8; Shortfall: 12.0%
Suzuki's rival to the Hyundai i10 and Skoda Citigo is surprisingly practical as well as incredibly cheap to buy and run, while its 1.0-litre petrol engine offers perfectly acceptable performance as long as you don't spend a lot of time on the motorway.