The most relevant data point is the selling price of a similar 2015 Opel Corsa 1.4L i4 hatchback with 86200 km mileage, which sold for AED 15000 in May 2024. This car is very similar in terms of model, engine, and condition. An offer was accepted for a similar car at AED 14500, which is slightly lower than the selling price, indicating a range. A listed price for a similar car was AED 15500, but listed prices are generally higher than selling prices. Considering the car's mileage of 92000 km, which is slightly higher than the sold car, and the time elapsed since the last sale, a slight depreciation is reasonable. Therefore, the estimated market price is slightly below the last known selling price.