I have setup my fuelly account, but havent logged data yet.
My 330 steptronic does the work and back trip daily, from Moreleta Park in Pta to Barloworld Automotive in Isando, which is a 100 km round trip, with some 20 odd kays of that being start stop driving.
I also dont drive economically by default, and I average around 11.5l/100km on a tank.
If I keep to the flow of traffic, and speed limits, it does come down to 10l/100km on the same trip.