1-First off, it's a Ford Festiva, designed and powered by Mazda.
2-Performance wise, it's better than anything within this budget, better than a Charade or Mehran. Ride is very comfy, engine pulls very strong, fuel consumption on both Petrol and CNG is very good, remember this is a 1.1L SOHC engine.
3/4-Spare parts are easily available from Plaza, including exterior/interior and engine parts. Suspension parts might not be that easy to find or be cheap. But everything is still available qabli.
Also, the AC on this car is very good, cools pretty well. Because the engine is 1.1L, it does not struggle too much on AC.