To estimate the price of the 2019 Tesla Model X 100D Dual Motor AWD with 81000 km mileage, I considered several data points. First, I looked at the selling prices of similar cars. The 2020 Model X P100D sold for 230000 AED in 2023, but it is a top variant and newer. The 2017 Model X 100D sold for 137000 AED in 2024, but it is older and has higher mileage. Another 2017 Model X 100D sold for 120000 AED in 2023, also older with higher mileage. The 2018 Model X 75D sold for 179500 AED in 2023, but it is a base variant. The 2017 Model X P100D sold for 189000 AED in 2023, but it is a top variant. Next, I considered the offer accepted for a 2019 Model X 75D at 194000 AED in 2023. Finally, I looked at listed prices: a 2019 Model X 100D listed for 252000 AED, another for 205000 AED, another for 180500 AED, and another for 187500 AED. Considering the car's condition, mileage, and the fact that it is a mid-variant, I estimated the market price accordingly.