To estimate the price of the 2018 BMW 530 I4 2.0L Twin Power Turbo Standard with 106000 km mileage and average condition, I first looked at the selling prices of similar cars. A 2017 model with 197000 km sold for 73000 SAR and another 2017 model with 115000 km sold for 96000 SAR. Given the 2018 model's lower mileage and newer year, it should be valued higher than the 73000 SAR car but slightly lower than the 96000 SAR car due to its average condition. Next, I reviewed listed prices: a 2018 model with 106000 km is listed for 155000 SAR, which is likely overvalued. Another 2018 model with 108000 km was listed for 109000 SAR but delisted, indicating a more realistic price. Considering these factors, I estimate the market price to be around 95000 SAR.