To estimate the price of the 2012 BMW X1 18i 2.0L I4 20i in bad condition with 170800 km mileage, I considered the following data points: 1) An offer accepted for a similar 2012 BMW X1 with 163000 km at AED 22500 on 2023-10-24. 2) An offer accepted for a 2014 BMW X1 1.8L I4 with 217000 km at AED 21000 on 2024-01-21. 3) A listed price for a 2012 BMW X1 Xdrive20i with 172000 km at AED 25000, delisted on 2024-06-18. Given the bad condition of the car in question, I adjusted the price downwards from these reference points. The most relevant data point is the 2012 model with a similar variant and mileage, which had an offer accepted at AED 22500. Considering the car's bad condition, I estimated a lower price.