pakwheels is open to public or just members?
There are currently 3990 users online. 513 members and 3477 guests
lets consider that half of em are using CNG, i.e 2k even then this 2k is divided over number of major cities, then that number is divided by number of pumps in each city
So my guess is with this information, there will hardly be 1 or 2 extra cars in the line from pakwheels