I started by examining the selling prices of similar cars. A 2023 Lexus LX600 3.5L F SPORT PRESTIGE with 1716 km was sold for AED 487050 on 2023-11-01, and another with 17169 km was sold for AED 435195.75 on 2024-10-15. These are the most reliable data points. The car in question has 5766 km, so its value should be between these two prices. Next, I looked at the offers accepted by sellers. A 2023 Lexus LX600 Signature with 43800 km had an accepted offer of AED 470000 on 2024-04-29, which is less relevant due to the higher mileage and different variant. For listed prices, similar cars with mileage close to the target car are listed between AED 497750 and AED 529900. Considering the car's mileage and condition, I estimate the market price to be slightly lower than the average of these listings, but higher than the lower selling price due to lower mileage.