To estimate the price of the 2018 Range Rover Velar R-Dynamic P380 HSE V6 3.0L Supercharged with 157000 km mileage, I first looked at the selling prices of similar cars. The closest match is a 2018 Range Rover Velar R-Dynamic I4 2.0L with 119000 km sold for 122000 SAR in August 2023. Another similar car with 50000 km sold for 180000 SAR in May 2024. Given the higher mileage of the target car, its value would be lower. Next, I considered the listed prices of similar cars. The most relevant listing is a 2018 Range Rover Velar R-Dynamic P380 HSE V6 3.0L Supercharged with 157000 km listed for 150500 SAR. Other listings for similar models with lower mileage range from 128000 to 205000 SAR. Considering the higher mileage and average condition of the target car, I adjusted the price downwards from the listed price. Finally, I factored in the depreciation and market trends to arrive at a fair estimate.