Agreed that Honda has amazing engine performance but as my requirement was of a second car and for city use with 70 kms per day average, I stuck with WagonR factory fitted CNG model. i10 is definitely a good car but I was looking at replacing Swift diesel with some thing very economical for daily running, hence could not afford a petrol car. Diesel itself would have taken my monthly OpEx higher than current situation, hence CNG was the best option for me.
I have finalized on WagonR and will be sharing the solutions to my dilemma in Ownership review but all I can say is that if you do a market research on CNG vehicles, no one can beat factory fitted WagonR in terms of peace of mind and no nonsense aspects of it except the boxy looks it carries!