To estimate the price of the 2016 Mercedes C250 I4 2.0L Twin Turbo Top with 98000 km mileage, I considered the listed prices of similar cars. The 2018 model with 119000 km is listed for SAR 123000. The 2017 model with 150000 km is listed for SAR 109500. The 2015 models with 182000 km and 204000 km are listed for SAR 76000 and SAR 89500 respectively. Given the 2016 model's mileage and condition, I adjusted the price downwards from the 2018 model and upwards from the 2015 models, considering the depreciation and mileage differences.