To estimate the price of the 2019 Hyundai Kona I4 2.0L Smart 2.0L (Mid) with 111000 km mileage, I first looked at the selling price of a similar car: a 2020 Hyundai Kona I4 2.0L Smart 2.0L (Mid) with 66000 km sold for SAR 54500 on 2024-03-10. Given the 1-year difference and higher mileage, I adjusted the price downwards. Next, I reviewed listed prices of similar cars: a 2019 Hyundai Kona I4 2.0L Smart 2.0L (Mid) with 111000 km listed for SAR 50000, and another 2019 model with 104000 km listed for SAR 51000. Considering the average condition of the target car, I further adjusted the price downwards from these listings. Finally, I considered the depreciation and market trends to arrive at a fair estimate.