Dr Shaggy, you're the one who started the Premio and Belta transmission thread and all this time i was getting happy thinking it was started by someone else and i was getting a reply for you from here!
Well, since Belta does have CVT transmission, i would NEVER recommend anyone to get cng installed since Honda City has the same kind of engine and is always ending up in trouble - my mami has spent approximately Rs. 30-40000 on getting her car's gear box fixed/replaced, God knows what. In view of this and remembering the fact that this is an imported vehicle with spares not common, i do think one ought to keep it to petrol. Agreed, petrol is extremely expensive and this car is too good to be denied, there's not many options left. plus, i myself stop almost every owner of Belta i see in Islamabad. all are running on petrol owing to good mileage. figures, you may ask. Well, Toyota claims the following:
1.0 l 2WD - 22km/l
1.3 l 2WD - 19km/l
1.3 l 4 WD - 16 km/l
These are factory figures which vary because tests are done on machines without taking into account the weight of the body. Plus, it's the difference of petrol quality as well. the combination of these put the 1.3l 2 WD mileage to approximately 16km/l for lovable in Gujranwala which is superb for a car this class i guess. M sorry but others such as Cylestine and Retrograde can give better views on the Honda City.
Back to Belta, my wild guess is that 1.0l would be for around Rs. 1.1 million while the top of the line 1.3l G grade would cost Rs. 1.25 million or close by. other variants of the 1.3l (X (base model) and X'S (Sports Edition)) should be between the two.
Top speed, check out till where abmalik got in his Belta:
My Toyota Belta in Isb
As for model, any year as long as the car is in Pakistan. However, if you wish to import a car yourself it should be at least twenty four months (months are important) old to get the least bit of duty/taxes levied. In case you need help importing, i'd rather you ask lovable because he imports cars in excellent condition and grade, mostly 5A, at reasonable rates for friends.