To estimate the price of the 2020 Lexus GX460 4.6L Premier with 120054 km mileage, I first considered the selling prices of similar cars. A 2020 GX460 Platinum with 77000 km sold for 170000 AED, and a Prestige variant with 105350 km sold for 146000 AED. The Premier variant, which is the base model, should be priced lower than the Platinum and Prestige. Dealer sales of the Premier variant with 103376 km and 95868 km were 157241.5 AED and 147041.5 AED, respectively. Given the higher mileage of the car in question, its value should be slightly lower. The listed prices for Premier variants with lower mileage were between 169990 AED and 184990 AED, which are typically higher than actual selling prices. Considering these factors, the estimated market price for the car is adjusted downwards due to its higher mileage and average condition.