To estimate the price of the 2017 Mercedes E400 V6 3.0L Standard sedan with 83000 km mileage, I considered the following data points: 1. A 2015 Mercedes E400 V6 3.0L Twin Turbo convertible with 148000 km sold for SAR 120000 in September 2023. Given the older model year and higher mileage, this car's selling price is lower. 2. A 2017 Mercedes E400 V6 3.0L Standard sedan with 83000 km was listed for SAR 175000 but not delisted, indicating it might be overpriced. 3. A 2017 Mercedes E400 V6 3.0L Twin Turbo sedan with 121000 km was listed for SAR 158500 in November 2023. Considering the higher mileage and the Twin Turbo variant, this price is slightly higher. 4. A 2017 Mercedes E400 V6 3.0L convertible with 30000 km was listed for SAR 175000 in April 2024. The lower mileage and convertible body type justify the higher price. 5. A 2015 Mercedes E400 V6 3.0L Twin Turbo convertible with 148000 km was listed for SAR 140000 in September 2023. 6. A 2017 Mercedes E400 V6 4.0L TwinTurbo 4Matic sedan with 172500 km was listed for SAR 135000 in December 2023. The higher mileage and different engine size affect the price. 7. A 2016 Mercedes E400 V6 3.0L Standard sedan with 204000 km was listed for SAR 112500 in March 2024. Considering the model year, mileage, and condition, I estimate the market price of the 2017 Mercedes E400 V6 3.0L Standard sedan with 83000 km to be SAR 145000.