To estimate the price of the 2023 Hongqi H9 I4 2.0L Turbocharged Executive (Top) with 30000 km mileage, I considered the listed prices of similar cars. The closest match is a 2023 Hongqi H9 I4 2.0L Turbocharged Executive (Top) with the same mileage listed for SAR 190000. Other listings include a 2023 Hongqi H9 V6 3.0L Turbocharged Executive (Top) with 150 km listed for SAR 206500, a 2022 Hongqi H9 V6 3.0L Comfort Two Tone (Mid+) with 28000 km listed for SAR 220000, a 2022 Hongqi H9 I4 2.0L Turbocharged Luxury (Base) with 33000 km listed for SAR 175000, and a 2022 Hongqi H9 V6 3.0L Super Charged 50TD Executive (Top) with 41000 km listed for SAR 170000. Given the closest match and considering the depreciation and market trends, I estimated the price accordingly.