My 56 plate 1.2 has done 92K miles. I have owned it since July and have averaged 52 mpg for the 5k I have done. The best tankful was 57 mpg, the worst, 47 mpg. These are actual measured mpg - not what the gauge says (though it is reasonably accurate on my car). I do frequent daily short journeys of around 3 - 5 miles in town (about 4 times a day), with a couple of 40 mile open road journeys most weekends. I am finding that the mpg is a lot lower now the cold weather has come along. What I do do is leave the heater temp set at cold, until the blue warning light goes out, then set it for warm. That way I allow the engine to warm up before I warm up the heater battery. I find that this way, the blue light goes out a lot quicker.