Good to have so many Ertigas in the same mileage range. What a coincidence to have all cars due for service at same time, all of us switching to synthetic oil etc.
Btw, took for a long trip last weekend to Pondy from Coimbatore and back. The cruise was amazing in the highway & returned decent mileage figures too. I certainly felt Ertiga was under powered among the group which comprised Xylo, Vento (D), Figo (D), Rapid (P) & i20 (P). But no complaints as such since it was a conscious choice & I am more than happy with overall performance, flexibility, comfort, space etc. Since I was driving I couldn't take too many pictures.. Will post a few pics tomorrow.