I Love Apples. "AN APPLE A DAYS KEEPS A DOCTOR AWAY".
On a serious note, bro if you have money for a City Base Model then go for City because one day you will need a sedan car for a family. Because if you buy it brand new then you must be keeping it for at least 5 yrs or so. And you can add the little things gradually.
I have a Suzuki Swift DLX (late 2012 model), And i will give you few pointers as per my little experience.
1) Swift is small car, even smaller than Cultus so it will be easy to drive in heavy traffic areas as you know the traffic in Karachi.
2) My Swift is giving me average of 12-14 with ac in city depending on driving conditions.
3) I have not seen city personally for quality but for the Ride Quality and Build Quality of Swift, i will rate it 8/10. Quality of front doors are not that good especially if you are give 1.2+ million.
4) Swift manual pick is just awesome and it does not disappoint me in any situation.
5) AC, ABS, EPS are good and i am satisfied.
6) Front seats are OK. But back seats are very comfy and the suspension of swift is little stiff so in bumps or bad roads, the cabin will make little noise.