To estimate the price of the 2016 Maserati Quattroporte V6 3.0L Twin Turbo (Base) with 147000 km mileage, I considered the following data points: 1. A 2015 Maserati Quattroporte V6 3.0L (V6 S) with 90500 km sold for 94000 SAR on 2023-09-18. 2. A 2015 Maserati Quattroporte GTS V8 3.8L (V6 S) with 106620 km sold for 97500 SAR on 2024-03-10. 3. A 2014 Maserati Quattroporte GTS V8 Twin Turbo (V6 S) with 150000 km sold for 71000 SAR on 2023-04-18. 4. A 2014 Maserati Quattroporte GTS V8 Twin Turbo (V6 S) with 150000 km sold for 76000 SAR on 2023-04-10. 5. A 2017 Maserati Quattroporte V6 3.0L Twin Turbo (GTS) with 54000 km sold for 120000 SAR on 2024-07-22. The 2016 model is newer than the 2014 and 2015 models but has higher mileage. The 2017 model is newer and has lower mileage, so it sold for a higher price. Considering the depreciation and the higher mileage of the 2016 model, I estimated the price accordingly.