73mpg, is that all
I was getting 75mpg out of my Polo 
Currently getting over 40mpg out of my GTi
good to hear im indenting too also be (hopefully) well over 40
good numbers in your polo that, my polo Tsi 105 does about 53, neither of course are a big heavy auto family car, cant knock the Prius save its 'plastic feel' effortless trouble free 40k miles.
cant wait to get my mits on the Gti though 1 week 1 day to go, don't know how im going to sleep next week!
Adrian