To estimate the price of the 2020 BMW 420 I4 2.0L Twin Power Turbo Standard sedan with 60000 km mileage, I considered the listed prices of similar cars. The 2018 BMW 420 with 56000 km is listed for SAR 113500, the 2019 BMW 420 with 50700 km is listed for SAR 109000, and the 2021 BMW 420 with 73000 km is listed for SAR 192500. Given that the 2020 model falls between the 2019 and 2021 models, I adjusted the price accordingly. The 2020 model should be priced higher than the 2019 model but lower than the 2021 model. Considering the average condition and the sedan body type, which typically has a slightly lower market value than a coupe, I estimated the price to be slightly lower than the midpoint between the 2019 and 2021 models.