welcome on car care thread and congrats for new car, Allha naseeb kare
black car difficult to care in our dusty enviornment specially in karachi
u must need following products
1) any mild shampoo like mother wash and wax shampoo or meguiars ultimate wash and wax shampoo
2) wash mitt
3) microfiber clothes ( 3m quality very good and economical than meguiars etc )
4) car interior detailer, like meguiars quick interior detailer good one or economical option turtle f21 interior spray
5) tyer gell like meguiars endurance gell or economical option armorall tyer foam spray
apart from above now u need car wax
1) natural wax , highly recommanded for dark paints as natural wax deep, dark the paint and give very deep gloss which require for dark paints like black, red , navy etc natural wax attract dust so u also need detailer spray like meguiars ultimate detailer spray or economical option armorall detailer spray , natural waxes like mother step 3 or meguiars gold class
2) synthetic waxes
these are man made waxes, give longer protection than natural waxes , give very good mirror like reflections but lack in depth and deep gloss
these waxes attract less dust but i personally dont use these on my dark colour cars which on light shades i prefer these waxes
as stated these waxes attract less dust so u can skip detailer spray , synthetic waxes
best one meguiars ultimate wax bit expencive than meguiars nxt, mother synwax or turtle ice polish these are few synthetic waxes avilable here in pakistan
optimum motor sports zamzama karachi having good range of meguiars but u have to use ur bargain skills 
armorall products at hyperstar or metro, turtle from saca plus karachi , mothers from autoline karachi or hyperstar also having mother products and 3m u have to google their contact details 
never dry dust car skin , allways double bucket shampoo wash, if thick dust layer better shampoo wash and if thin layer than use detailer spray for daily clean
jazakllah for kind words and wish u best of luck.
feel free to ask more questions if u have
salam
ahmad yar
