To estimate the price of the 2019 Nissan Kicks I4 1.6L SL (Top) with 80000 km mileage, I first looked at the selling prices of similar cars. The closest match is a 2019 Nissan Kicks I4 1.6L SL (Top) with 87000 km sold for 48500 SAR on 2023-12-22. Considering the mileage difference, the price should be slightly higher. Another SL variant listed for 50000 SAR with 87000 km was delisted on 2023-12-23, suggesting a similar price range. The listed price of 42000 SAR for a car with the same mileage and variant provides a lower bound. Factoring in these data points, the average selling price for similar cars is around 48500 SAR, adjusted slightly for mileage and market conditions.