Dear Fada and Ricky
Its not so ideal
My charade is giving 65 km on Rs. 500 (filled on empty)
On a 500 rs fill @107 rs per litre , i am getting 4.67 litres total to run on ...Getting an average of 14 ( 65 km / 4.67)MASHALLAH.
Now back to Fada's calculation on Liana and Mehran
My 2010 (10000km run mehran) gives an amazing 17km/litre (320km /18 litre) rs 2000 ...which is almost full tank..MASHALLAH. i drive it on petrol only however once tested the factory fitted cng and it gave mind boggling 145km/350 rs full tank. So mehran is the all time king in feul economy (not a bad drive considering the crowded karachi roads) do note that i dont go over 60-70 and keep a light foot.
21km per ltr of mehran is out of the question, where as your liana is going around 10ish.
If the liana can give around 15 on petrol on light foot... that would make a great replacement for my charade.. heck with the cng ....wont need it at all... and if the same can be achieved on the 1.6 eminent auto. then wa wa woom...