I would like to add here that just calculating distance with average speed would not work. To calculate more accurately, ground reality factor should be considered as well. i.e. broken/ bad road patches, traffic jam areas (some locations are famous for this in sindh), time of refueling/ refreshment, etc.
I read at some places of people saying it took them less than 6 hours from Karachi to Ubaro. This is my route and I travel frequently on this sector, it never took me less than 8 hours no matter how hard I tried to reach destination at the earliest by driving safely but pushing the ride wherever I can. May be someone can do it but by staking not only their own life but the ones accompanied and also those innocent who comes in the way.
No offence please.