Thanks bro
Well i think those who r looking for JDM hatchback VitZ is a top choice
Improving tyre size to 185 or 195 will get rid of car bumping speed breakers
Get recommended denso plugs will improve performance
Get either original air filter or spend 4500 for K&N life time filter
Change transmission oil when u get model like 2008
Change engine oil @ 4000 km ( some do it @ 3000 )
Try to use one fuel station regularly, hi octone mix with super will deliver better mileage
Better fuel economy will come with soft acceleration, good tyre pressure and not racing 
Im getting regular 13-14 km/L with ac in city & achieved highest mileage near 17.5 with ac from lahore to sadiqabad
Most ppl on pakw r satisfied with their vitz so like them im satisfied 
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