What Car? True MPG tests the economy of new cars in real-world driving conditions, but how do used cars get on?
We invited four What Car? readers to join us at a test track, test their cars and see just how their cars fared against the Government's official figures.
Watch our video where we test a used Audi A4 Avant, Mercedes C-Class, Mercedes E-Class and Subaru BRZ.
Check out the latest economy tests with our True MPG database.
What Car? True MPG Reader Test Team video
Our reviews are based on hard data and thorough testing in the real world.
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