I bought Wagon R CNG Version on Dec 2011 . The performance is not satisfactory at all. THe fuel efficiency is very poor it is giving the average of 100 kms on filling full cylinder of CNG . In petrol also, it is giving the average of 12 or 13 only, whereas the company claims 26 on CNG.
I am not all satisfy with the fuel efficiency. Very disappointed . On petrol, the pick up is not satisfactory but on CNG, it is good as compare to petrol.
Regards
Vibin Rajan