To estimate the price of the 2023 Kia Sonet I4 1.5L EX (Top) with 30000 km mileage, I first considered the selling prices of similar cars. A 2023 Kia Sonet LX (Base) with 7000 km sold for 55000 SAR in January 2024. A 2021 Sonet EX (Top) with 47492 km sold for 53000 SAR in September 2023, and another 2021 EX (Top) with 42000 km sold for 49000 SAR in July 2024. The 2023 EX (Top) variant is more valuable than the LX (Base) variant, and the 2023 model year is newer than the 2021 models. Next, I looked at listed prices: a 2023 EX (Top) with 14200 km was listed for 68000 SAR in March 2024, and another with 14000 km was listed for 64500 SAR in August 2024. These listings suggest a higher market value for the EX (Top) variant. Considering the mileage of the car to be estimated (30000 km), which is higher than the listed cars but lower than the sold 2021 models, I adjusted the price downwards from the listed prices but higher than the 2021 sold prices. The estimated market price reflects the balance between these data points.