My 328i GT has just passed 5000 miles and the Journey Computer, which has never been reset, shows 32.2 mpg.
I recently brought the car back home from Inverness (42 miles), driving quite steadily in traffic and on local roads (we don't have motorways, autobahns or interstates up here !), and the trip computer showed over 39 mpg.
My car does not have X drive and I guess the X Drive must make a considerable difference.
