I visited Shogran to Babusar top with my Family on Mehran Euro-2 on 02-07-2017. There were no major difficulties on this route except for land sliding near Jalkhad. I didn't attempt to cross Babusar Top as it was not in the itinerary , so I don't know about the slope and condition of road after Babusar Top. I have maintained my car well, so I didn't face any difficulty at any place. One must maintain Clutch, brake and radiator, when planning to visit this area. Shogran road is more of off road instead of carpeted one, it is bumpy. Cars with low clearance may face issue however, Mehran didn't face this issue. Good speed is required to cross few slopes.
For ISB drivers, whoever drove Mehran on the road of "Highland Club", he can drive at any place. I felt "Highland Club" road is tougher than any other high road. I drove Mehran Euro-2 with four passengers with 50-KG CNG cylinder at that time. All other cars there were above 1000 CC, so felt proud of my Mehran.
Shogran Road: