You should first check for the computerized report of the car condition. It will detail if you have to do any major repairs in the mechanical or under the car, including the expenses. If there is no major work to be done you can go upto 40K for that model, also depending on its options like high range or low range. Otherwise it will be worth 25K only. Check out with other websites like qatarsale etc. or in Salwa road.