To estimate the price of the 2013 Hyundai Tucson I4 2.0L Smart (Base) with 290000 km mileage, I first looked at the selling prices of similar cars. The closest match is a 2013 Hyundai Tucson I4 2.0L Comfort 4WD (Mid+) with 98400 km sold for 42000 SAR on 2023-09-09. Given the higher mileage and lower trim of the target car, a significant depreciation is expected. Another relevant data point is a 2014 Hyundai Tucson I4 2.0L Comfort 4WD (Mid+) with 294000 km sold for 32000 SAR on 2023-08-06. Considering the target car's higher mileage and lower trim, its value should be lower. The listed prices for similar 2013 models are 27500 SAR and 32000 SAR, but these are higher than expected selling prices. Based on these data points, I adjusted for the lower trim and higher mileage to arrive at the final estimate.