To estimate the price of the 2018 Mazda 6 I4 2.5L S Grade (Base+), I considered the selling prices of similar cars. The closest match is the 2018 Mazda 6 2.5L I4 with average condition and 179500 km mileage, sold for 36500 AED and 37500 AED in October 2023. Given the target car's higher mileage (242500 km) and bad condition, I adjusted the price downwards. The 2017 Mazda 6 2.5L I4 with 104000 km sold for 51500 AED, and another 2017 model with 93000 km sold for 44000 AED, both in average condition. These prices are higher due to lower mileage and better condition. The 2018 Mazda 6 2.5L I4 with 122869 km sold for 35500 AED in May 2024, which is a closer match but still in better condition. Considering the bad condition and high mileage of the target car, I estimated a lower price.