The car to be estimated is a 2016 Kia Optima GT I4 2.0L Turbocharged T-GDI GT with 123,000 km mileage. The most relevant data point is a 2016 Kia Optima I4 2.0L T-GDI GT with 154,600 km sold for 48,000 SAR in May 2023. This car is in good condition, while the target car is in average condition, suggesting a lower price. Another 2016 Optima I4 2.4L T-GDI GT with 205,000 km sold for 39,000 SAR in July 2023, but with higher mileage. A 2017 Optima I4 2.0L T-GDI GT with 188,300 km sold for 46,000 SAR in May 2023, also in good condition. A 2016 Optima I4 2.4L T-GDI GT was listed for 45,000 SAR with 130,000 km but delisted in June 2024. Considering the target car's average condition and lower mileage, the estimated price is slightly lower than the 48,000 SAR sale but higher than the 39,000 SAR sale, around 44,000 SAR.