Sir, I think they would launch it on 14th August (Independence Day) with a new tagline...
"Its Independent ....Pakistan's National Sedan"
If I were in their marketing team, I would launch it on 14th August with a National theme centered decorations; displays and launch campaign with an additional Tag line ...
"Every Pakistani CITY is simply amazing"
and hundreds of deliveries on the same day with gift hampers like clip on flags; CITY branding T-Shirts, stickers etc..