To estimate the price of the 2018 Hyundai Sonata I4 2.4L Standard with 245800 km mileage in average condition, I considered the following data points: 1) A similar car with 217500 km in good condition (Supreme variant) sold for 49000 SAR on 2024-02-08. 2) Another similar car with 254000 km in average condition (Smart variant) sold for 38500 SAR on 2024-07-13. 3) Listed prices for Standard variants with similar mileage ranged from 33000 SAR to 52500 SAR, with the most relevant being 33000 SAR, 37000 SAR, and 42000 SAR. Given the higher mileage and average condition of the target car, I adjusted the price downwards from the mid-range of these listings.