there is one problem that you might come by and i also have it in my car
3 of my friends have also experienced it
its negligible but still is an issue in the winters
the car is constantly rattling its RPM when its temperature COOL light is on
and sometimes it does when its warm as well
my car sometimes takes a looooooooong sulf when it gets switched off cux of RPM rattle
and there are worst night mares
the BRAKES dont work optimum when its rattling and the electronics shiver as well
there is no issue with the steering as its not hydraulic in the city IDSI
but all there issues are very very minor
there is no major difference in performance if u have some good filling station of CNG who is reliable and reputed
its really economical to use this car on CNG and we should