To estimate the price of the 2020 BMW 730 I4 2.0L Twin Power Turbo Standard with 81500 km mileage, I first considered the selling price of a similar car: a 2020 BMW 730 Li I4 2.0L Twin Power Turbo with 40000 km mileage, sold for SAR 123500 on 2024-06-06. Given that the Li variant is typically more expensive, I adjusted the price downwards for the Standard variant. Next, I reviewed listed prices of similar cars: SAR 174000, SAR 240000, SAR 195000, SAR 286500, SAR 215000, and SAR 250000. These prices are generally higher than actual selling prices, so I considered them as upper bounds. The closest match in terms of mileage and specs was listed for SAR 174000. Considering the average condition and higher mileage of the target car, I estimated a lower price than the listed prices but higher than the sold price of the Li variant.