By London standards it has been rather cold of late and I decided to get an accurate MPG figure.
This worked out at 30.38 MPG which I would suggest is far lower than any other owners have posted.
My journey is 3 miles each way which takes about 12 minutes starting at 6:50am and about 20 minutes on the return starting at 5:30pm so on both journeys the engine is cold and lights, heaters, etc needed.
The same journey in the summer I achieve around 44 MPG.
I just thought I would post this up in case any interested parties wanted to know.
Personally I think the standard test for urban MPG should be a 2 mile journey in winter when it is dark and cold in a built up area with a few stops and starts. At least this would give everyone a worst case scenario.