To estimate the price of the 2022 MG 5 I4 1.5L STD (Base) with 89000 km mileage, I first looked at the selling prices of similar cars. The selling prices for the LUX (Top) variant ranged from 36500 SAR to 39000 SAR with lower mileage (45000 km to 59000 km). The COM (Mid) variant with 73000 km sold for 34000 SAR. Given that the STD (Base) variant is typically cheaper than the LUX and COM variants, I then considered the listed prices of similar STD (Base) cars. These ranged from 26000 SAR to 36500 SAR, with the most relevant being 26000 SAR for 81000 km and 28000 SAR for 73000 km. Considering the higher mileage of the car in question (89000 km) and the fact that it is a base variant, I adjusted the price downwards from the listed prices to account for the higher mileage and the base variant status.