To estimate the price of the 2021 Hyundai Creta I4 1.5L GL (Mid) with 149000 km mileage, I first looked at the selling prices of similar cars. The 2020 Hyundai Creta I4 1.6L with 56000 km sold for 57000 SAR, the 2020 Hyundai Creta I4 1.5L (Top) with 52000 km sold for 52000 SAR, and the 2023 Hyundai Creta I4 1.5L (Top) with 17000 km sold for 60000 SAR. These prices suggest a range of 52000-60000 SAR for cars with lower mileage and different trims. Next, I considered the listed prices of similar cars. The 2021 Hyundai Creta I4 1.5L GL (Mid) with 149000 km was listed for 57500 SAR, and other similar models ranged from 49000 to 64500 SAR. Given the higher mileage of the target car, I adjusted the estimate downward from the listed price. Considering the selling prices, listed prices, and the car's condition and mileage, I arrived at a final estimate.