To estimate the price of the 2016 FIAT 500 I4 1.4L Turbo charged Lounge (Mid) with 136000 km mileage, I first considered the selling price of a similar 2015 FIAT 500 L I4 1.4L Turbocharged Convertible 1.4L Pop (Top) with 80000 km mileage, which sold for SAR 30000 in July 2024. Given the higher mileage and different variant, I adjusted the price downwards. Next, I looked at listed prices: a 2015 FIAT 500 L I4 1.4L Turbocharged Convertible 1.4L Pop (Top) with 155000 km is listed for SAR 39000, and a 2016 FIAT 500 C I4 1.4L Convertible 1.4L Pop (Top) with 94570 km is listed for SAR 38000. Considering the higher mileage and different variant, I adjusted the price downwards. Finally, a 2018 FIAT 500 I4 1.4L Lounge (Mid) with 63000 km is listed for SAR 43000. Given the older model year and higher mileage of the target car, I adjusted the price downwards. Combining these data points, I arrived at the final estimate.