Dear Friend, if you are going to sell one it will be PKR 1.2 mill irrespective of whether you have spends thousands on its upkeep. If you are going to buy one, they will try to sell the same thing to you for 1.4 mill +
Try checking the Toyota Stealerships as well. (you can check the indus website for available used vehicles too). They also have used vehicles that they will provide a Guarantee for. But they will charge you more than the market price for it.
