citra is a fuel guzzler. and its 2.0L engine also not that powerful. underpowered. but, I understand your dad's interest in the citra. my mom also love it. but my dad doesnt because bear in mind, you need to cover the fuel maintenance which way too high for a 2.0L.
vios is good. its 1.6 sips quite appropriate amount of petrol. its just that for me, the vios is too over-rated. the plastic is looking cheap. but everyone struggled with plastic. toyota is well known for their good after sales service too.
so, the obvious choice would be vios. but why not spend a bit more for a Swift? 80K + only. well, forking out a bit for the best car shouldnt be a problem, right?
chicks should be in hot hatchbacks = swift! ;)