If you decided to go Khalid Bin Waleed Road or Jamsheed Road first look over all marker and only buy a car with original paint. Negociate the price cleverly and start from 1 lac less they said. A same new vitz available from 8.80 lac to 12 lac.
They will try their best to rip you off. Show them you are a serious buyer but you are going to visit every shop of the market they make decision. If you like color of the car don't show to them otherwise it will cost you.