1.6 is dual vvti and better weight to power ratio and gives easily 14-15 in city and if you are a light footed fuel efficient driver you may get a bit more -- very nice average for a 1.6.
The details of reg cost in Islamabad was posted many times above but I again post it as it's too many pages up there.
egistration of 1.6 Altis in Islamabad
Total Cost include
Registration Fee : 39440/- Rs
Income Tax (Non Filer) : 9000/- Rs
Motor Vehicle Tax : 384/- Rs
Scanning Fee : 550/- Rs
Number Plates Fee : 510/- Rs
_____________________________<wbr> ________
Grand Total : 49884/- Rs
For Filers
Registration Fee : 39440/- Rs
Income Tax (Filer) : 4500/- Rs
Motor Vehicle Tax : 384/- Rs
Scanning Fee : 550/- Rs
Number Plates Fee : 510/- Rs
_____________________________<wbr> ________
Grand Total : 45384/- Rs