Well, Interior isn't rough its the pic which is not doing justice, anyways rear is not in the bad condition it is just the Bumper which was rough but just got it painted from Suzuki Motors Sargodha.
for the price issue, I haven't written its final, bargaining is the key to any deal and it's the right of both buyer and seller to negotiate and bargain on the price.
Please show me your Cultus I admire cars and love to watch a mint condition ride.