To estimate the price of the 2019 BAIC BJ40 Champion (Top) with 100000 km mileage, I considered the listed prices of similar cars. The 2021 BAIC BJ40 Premium (Base) with 58000 km is listed for AED 78500. The 2020 BAIC BJ40 Flagship (Mid) with 50200 km is listed for AED 88000. The 2018 BAIC BJ40 Champion (Top) with 36500 km is listed for AED 56000. Given the higher mileage and older model year of the target car, I adjusted the price downwards. The 2018 model with lower mileage is listed for AED 56000, so the 2019 model with higher mileage would be slightly higher but still lower than the 2020 and 2021 models. Factoring in the mileage and year, I estimated the price accordingly.