This is an incorrect news. Previous govt inaugurated M4 with only few kilometers complete. All bridges, exits, even entry from M2 was done after they departed. Politicians are not interested in motorway completion but its inauguration only. Just like M2 which was completed by Musharaf and not MNS.
On a different note. If Abdul Hakim Khanewal section is open then its a wonderful drive to Sukkur. In September I drove from Lahore to Sukkur, entering M2 at around 1045 hours. I was in Sukkur by 1930 hours via M5, though it was officially open. I also lost time from Abdul Hakim to Kahnewal and another hour due to some administrative reasons. Now people should be able to make it to Sukkur in 6 hours or so. Sukkur - Karachi is another 5 hours. ideal for groups travelling on this route, better than by air travel.