The car to be estimated is a 2021 Mazda 6 I4 2.5L Core (Base+), with 91000 km mileage. The closest data point is the 2021 Mazda 6 I4 2.5L Turbocharged Ignite (Top) variant sold for 90500 SAR on 2023-10-26 with 94000 km. The Core variant is lower than the Ignite, so it should be priced lower. A 2019 Mazda 6 I4 2.5L S (Base) sold for 67000 SAR on 2023-07-17 with 79000 km, which is older and a base model. A 2023 Mazda 6 I4 2.5L S (Base) sold for 81000 SAR on 2024-09-20 with 20000 km, which is newer and has lower mileage. Considering the 2021 model year and mileage, the estimated price should be between the 2019 and 2023 models, closer to the 2021 Ignite but adjusted for the lower trim and higher mileage.