I've been keeping a close eye on mine lately Kian and I'm currently set for about 370+ miles from the current tank (260 miles done, trip says 130 odd left). That's brim to brim and the first time I've properly monitored it.
All of this is mixed driving. A very even mix of motorway driving, A/B road twisties' and town driving. I've spooled the turbo hard in parts with a few bursts, but it's all mostly steady driving.
On the commute home tonight I got 37.2 mpg for that journey alone. That's about 15 miles of country roads, with lots of small inclines (up hill, down hill etc...). I was impressed with that, but I'm talking about really chilled driving on the wind down home from work.
I'm a 2006 GTI 3door Manual on light alloys, smoothly running car (that I know of!
) & tyre pressures set correctly etc...
There's lots of factors that contribute to poor/good mpg.
There's a good collection of mpg and fuel usage threads on here, have a dig around to get you thinking about it