To estimate the price of the 2013 BMW X3 I4 2.0L Twin Power Turbo, I first looked at the selling price of a similar car: a 2012 BMW X3 xDrive 28i I6 3.0L with 196000 km mileage, which sold for SAR 28000 on 2024-01-30. Given that the car in question is a year newer and has a smaller engine, I adjusted the price upwards slightly. Next, I reviewed the listed prices of similar cars. The closest match is a 2013 BMW X3 I4 2.0L Twin Power Turbo with 155000 km listed for SAR 43000. Other listings include a 2013 model with 178000 km for SAR 38000, and another 2013 model with 235000 km for SAR 38000. Considering these listings are generally higher than actual selling prices, I adjusted the estimate downwards. Finally, I factored in the average condition of the car and the market trends to arrive at a fair market price estimate.