Cheema I found only one thing to compare CNG with Petrol i.e. using a CDMA cellphone in comparison to the GSM cellphone.
While the GSM is a universal choice with world class service and CDMA is a poor mans choice.
Same with the CNG, but in this case we spend 40K on CNG kit and still finds ourselves busy tuning for the ideal setting, compromising on power output and caring about the cylinder behind our seats.
May be it is a good bet in Pakistan!!!
By the way Cheemas are Jatts. I feel you are also one ?