The car to be estimated is a 2016 Mercedes E200 I4 1.8L Standard with 158,000 km mileage. The closest match in the listed prices is a 2016 Mercedes E200 Turbocharged I4 1.8L with the same mileage, listed for SAR 79,000. This is a direct comparison in terms of year, engine size, and mileage. Other listings include a 2014 model with a similar engine and higher mileage listed for SAR 56,500 and SAR 68,000, indicating depreciation over time. The 2018 models are listed significantly higher, reflecting their newer age and larger engine size. Considering the 2016 model's listing price and the depreciation trend from older models, the estimated market price should be slightly lower than the listed price of SAR 79,000 to account for negotiation and market conditions.