To estimate the price of the 2017 Ferrari 488 Spider GRB with 103000 km mileage, I first looked at the new car price for the 2025 Ferrari 488 Spider Convertible, which is AED 1395500. Applying a 10% annual depreciation over 7 years, the estimated value is AED 665,000. Next, I reviewed listed prices of similar cars: a 2018 Ferrari 488 GRB Convertible with 58500 km listed for AED 529500 and another with 58000 km listed for AED 679500. Considering the higher mileage of the target car, I adjusted the price downwards. Additionally, classified listings for 2017 models with lower mileage (41000-79000 km) range from AED 590000 to AED 745000. Given the higher mileage of the target car, I further adjusted the price downwards to reflect its condition and mileage.