To estimate the price of the 2018 Audi A4 I4 1.4L 30 TFSI Sport (Top) with 162000 km mileage, I considered the listed prices of similar cars. The closest match is a 2018 Audi A4 I4 1.4L 30 TFSI Sport (Top) with the same mileage listed for SAR 73000. Other listed prices include a 2018 Audi A4 TFSI Quattro I4 2.0L Turbocharged with 95900 km for SAR 70000, and two 2020 Audi A4 35 TFSI S-Line I4 2.0L Turbocharged with around 57000 km listed for SAR 129500 and SAR 135000. Given the higher mileage and average condition of the target car, I adjusted the price downwards from the closest match of SAR 73000 to account for depreciation and condition.