Ok Superb owners- today I was in Glasgow on Business, then drove back to Perth in work time, so set cruise control and took it smoothly and easily (max 56mph)

Filled up with fuel in Perth- attached are pics of display= defy anyone to beat this in a Superb. Mine is non greenline 1.6CR with 28k miles on the clock

That's tremendous. Even if your trip computer is 20% optimistic like mine, it's still over 70mpg. Not bad for a big old barge.