congratz bro, me also goin for it in a few week inshallah,,,,,
as for the tyre its a really tough call,,,, city previos model used to slide on its 165/80/13,,,, so now also imported tyre cost too much and effect economy as u have abs at rear so it wont be sliding any where so u dont need to change those and in hard breaking the weight of the car is shifted to front and usually it still tend to slide a bit so id say find yor self some soft rubber 185 or max 195 only for front so the abs kicks in as it does now,,,
trust me even 185 makes a difference and softer tyre might have a bit short life (lets say 5k less) but the ride quality is was better and less burden on the suspension,,,,,
fog lights would be awsome,,,, and as for traker it depends on u its cheaper option and gives peace of mind but u have to compromise on warranty which u might also in case u install cng,,,,, and if u insure it then its like 60k premium a year and a warrenty of 3yr or 70k kms,,,, and if god forbid u loose the vehicle its insured at invoice price and they deduct 10-30% of it where as the market price of the vehicle would be above the invoice due to pakistani market,,,, so in your 2nd year u would of paid 130k in premium and if driven say 40,000 km spend 50-60k extra on petrol atleast ,,, to have a warrenty and insured value of 150k less then your cars market price,,,, so u spend abt 180k above to have a warrenty and 1.2 mil rs worth insurence of ur atleast 1.35 mil car so he loss is above 330k,,, and in third year its above 400k,,,, i tried to buy a 09 city but dident find a good 1 for less then 12.50 lac where as the invoice was 12.02 in 2009,,,,,, so for me spending around 2 lac on 3 year insurence to save a warrenty thats not gona cover any thing close to that,,,,, and have a return value way less then the current value of ur car doesnt seem wise plus u can always find a way to claim iwarrenty in pakistan if really want it,,,,,
for seat cover get some fabric matching the stock,,,,,
i think u can put round speakers on the trunk board as it has pre cut fitting for those (u have to check that,,, the previous model did ) and u can find preety good speakers to go there if not then rear door is still there.....