This is my first ever post, so Hello.
I changed from an 03 147 1.9 JTD to a 07 159 1.9 SW. (Had it 5 months and i still look back once I've parked it!)
I used to get between 45-50 mpg on my 5 mile journey to and from work, but now in the 159 i'm getting between 33-38 mpg, and that is driving as eco as i can.
I was a bit diappointed by that but then it is a much bigger car. However i have been on a few long runs. A week in snowdonia with the wife, daughter and car full of stuff. Cruising there at 70 and then lots of jouneys round the mountains was getting me 45 mpg and i've been on a few long runs down to london and up to the north east, mostly doing 70 on cruise control, but sometimes pushing up to 90 for a bit of fun and i been getting about 47.
It's just a shame that round town, which is what it is mostly used for, that it is so bad. I'm not sure what an A4, or 3 series would be on that journey, but i'm sure it would be better!