To estimate the price of the 2018 Toyota Corolla I4 1.6L XLI (Base) with 134901 km mileage in good condition, I analyzed the provided data points. The most relevant selling prices are: SAR 48000 for a similar car with 122000 km (average condition, sold in March 2024), SAR 36000 for a similar car with 184000 km (average condition, sold in May 2024), and SAR 53000 for a 2020 model with 136593 km (good condition, sold in November 2023). Considering the condition and mileage of the target car, it should be priced slightly higher than the average condition cars but lower than the newer model. The listed prices for similar cars range from SAR 39500 to SAR 48000, with the most relevant being SAR 47500 for a car with 141000 km. Taking all these factors into account, I estimate the market price to be around SAR 45000.