Pakistani yaris has EBD, plus climate control alone costs alot which is available in Pakistani variant.
Rear Fog lamps, paking sensors, shark anteena and cruise control combined won't cost more than 5 to 7 thousand if you get them aftermarket...
I think there is no acoustic windscreen and smart entry in gulf variant aswell.
We can conclude than Pakistani variant is much loaded and justified cost wise... only climate control justifies the cost difference