Yes, 7 person can easily sit. I have not refilled tank yet. but depending on road condition, heavy traffic on two way road i noted following figure from dashboard driving with 5 adult, 4 kids and bags,
14km avg with AC, 15.8 without AC on one way road, a lot of braking but no stop.
12km with AC on hilly road.
Average drops below 10km/l when running below 20km/h in streets/off road. But on light foot and plan road average goes to 20km/l, talking about instant consumption indicator.