Well here in Islamabad/Pindi a Mehran with 40L CNG tank does around 125km within city (without ac) and with AC it does around 110km. On any long route it does 170 without ac and with ac about 150.
Petrol I think within city around 13-15 (with and without) and YES I too did like 23km/l on Motorway but speed was like around 90km/h
@ race_addicted! Really good to know that Coure does 270km in a 50L CNG tank, thats good, in fact very good.