Sounds good, I have had several experiments with my mpg after it was quoted at 50.1 when we bought it it was constantly saying only about 40-45 for local journeys. Then when I took it on a long journey I reset it and 140 miles up the M1 later at about 80-85mph it read 49.6.
Then another 140miles on the way back at 65-70, same journey, I got 63.2mpg - no joke. Not believeing this I filled it up and worked it out the hard way and got 55mpg for both ways - a good average so I'm pretty happy with it now where before I was a bit dissapointed.
It seemed wierd though to change so much because my dad's Skoda Octavia does a genuine 65mpg whether around town or long journeys regardless - maybe because it's a powerful car. Anyway just my findings.
Also a 1.2 8v by the way!