New True MPG results 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 from June and July?

Words By What Car? team

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Mini hatchback 3dr 1.5 Cooper

Official fuel economy: 60.1mpg; True MPG: 41.3mpg; Shortfall: 31.3%

Mercedes-AMG GLC 43

Official fuel economy: 34.0mpg; True MPG: 25.3mpg; Shortfall: 25.6%

Seat Leon 1.0 SE Tech

Official fuel economy: 64.2mpg; True MPG: 53.1mpg; Shortfall: 17.2%

Skoda Superb 2.0 SE Technology

Official fuel economy: 67.3mpg; True MPG: 47.5mpg; Shortfall: 29.4%

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