Just done 1350 kilometres in 13 days in a Corolla Hybrid rental car. Being a bit of a hybrid fan, must say I enjoyed it a lot more than the non hybrid version I have previously rented. More responsive and quieter and obviously better on fuel too. Used 66.6 litres to do 1352 kilometres which I calculated at around 4.9 L/100 kilometres. Not much better than my Camry Hybrid although I was using Aircon Flat out and often when parked as well.
I was going to get an i30 go which I consider better than the new Corolla but like trying different vehicles and probably recouped about $50 of the extra $78 Rental cost in fuel savings.
Auto cruise works a lot better in the Hybrid too. (It would want to)