Hello Fellows, Here I'm sharing my experience of my ride which has recently completed 100,000 Km and become zero-meter again 
Alhamdulillah the car never disappointed me. I've had countless trips to the northern mountains, Peshawar, Charsadda etc. The car never broke up. Its engine is performing well as it did from day 1. I've been using Caltex Havoline with drain interval of 3000 Km, recently switched to Petromin Ultra 7.
Few things I added to the car are:
1- Hydraulic Brakes ( braking servo ), it has helped alot in improving its braking.
2- Air Conditioner ( working well in extreme hot too )
3- 165/70/R12 tires
4- Speedo meter from japanese alto/mehran shaped ( it has additional trip meter )
Rest of the car is stock. I have not taken any extra ordinary car of the car, just checked the oil and water regularly, changed the oil, oil filter and air filter regularly. Whenever I fill my CNG cylinder, I drive it untill its empty and then I drive almost 10-15 km on petrol. I'm attaching the only pics I have at the moment: