Hi there, new guy on the block here. Just got a new A6 S-Line TDi 177 manual as a company car. Not many extras, just Bose, AMI and 19" alloys. So far very pleased but i am very concerned about the poor MPG. My last car was a BMW 330d auto and on a run that would return 50mpg. i know this car is new and tight but over the same run and speed this is returning only 45MPG. So my question is will this improve after running in?