please have my replied as follow
1) 06-07 should be from 14 to 15.5 and not more than that. People are asking for new price, both in market and through reference.
2) I have CNG in civic 06, working perfectly well. You should Check the CNG Installation market near Mazang Lahore, due to lot of competitors, you will get good rates.
3)Civic 09 will come up with slight modification, lights etc but the one we HAVE presently is better.