1..i m islamabad so i can suggest u here...u need to ask lahore members for that
2...power windows ..get motors from cultus..and use panel from 86 corolla.....try to find auto side mirrors came in few version named under sprint
3.....on same engine can be done...but not much response.....
like u do 2k for air intake..4k for piping..3k for exhaust...7k for headers ...2k for good wires...2k for plugs...so after spending more then 20k...
all u do is get head to head with vitz.....fuel economy goes
but if u get a new engine with extra 30 or 40k......u will be eating reborns..and still mileage better then a corolla.....on CNg almost same as mehran
engine go for G15 or g16......parts no issu...or g13b as if u get bolt on khyber then its like 22 year old engine..though u can find Mk3 cultus shape engine with same level mods......as u do for g15 or g16...and i have done the same
so parts r issue for g13b..but u have alot of performance parts in market