When it comes to cars, CNG stands for Compressed Natural Gas.
CNG could also mean saving worth thousands of rupees per month. It can also mean that you have something to show for after watching An Inconvenient Truth 
. Although not many (hardly any!) people here in Pakistan are concerned about their carbon foot print, there are many who would love to save. This little article gives you the low down on CNG for your car, answering questions about CNG safety (exploding cars?!?!) and engine life.