I was a little dissapointed with the mpg of my 01(75)tdi to begin with but having read and seen else where that 60, 70 ,80 mpg are possible i do hold out hope of hitting that sort of figure.
I only do stop start town driving and get between 41 and 46 mpg the most ive had is 50 so i need to do a long motorway run to see what my baby will do.
If i use the car just for work, which is 10 miles each way, i get about 52mpg. The engine temparature seems to effect the fuel comsumption more so than other cars (although the A2 is the first car ive had with a fuel consumption display). I usually ride into work most day though.