I to can get close to this mileage of 3.2l but now too hot (34°C and 70% humidity) .
My last tank refill average 3.89l (using a/c) (904km from ful to empty tank light come up with 45km to empty on screen. (According to user manual should be around 5l in tank) refilled 36l, i think our gas stations cheating.....
Morning trips without a/c ~ 10km with speed up to ~40km/h i getting readings from BC 3.1l/100km.
4 months ago i have issues with braking system
the brake pads wedged sometimes, a couple of times in traffic jams I heard a rumble from behind, I thought that the truck was slowing down nearby, until I heard the same rumble when I was turning around in an empty parking lot, I went to the service center, they told me that they hadn't found anything, but after that the fuel consumption became decrease.
On trips that not shorter then 7 km with speed up to 40km/h on flat road it's possible.
Japanese Fit e:HEV in specs have WLTP test and JC08 test results, using JC08 test pattern (if someone interested this can be found in the net) car can show consumption 2.8l/100k in town.