The car to be estimated is a 2012 Mazda 6 I4 2.0L Core (Base+), in bad condition with 305,000 km mileage. The closest selling price is a 2012 Mazda 6 I4 2.0L S (Base) with 284,000 km in average condition sold for 13,000 SAR in March 2024. Given the bad condition of the target car, its value should be lower. A 2012 Mazda 6 I4 2.0L S (Base) with 284,000 km was listed for 14,500 SAR but delisted in March 2024, indicating a likely lower selling price. Considering the bad condition and higher mileage, the estimated price should be below 13,000 SAR. Factoring in these aspects, a reasonable estimate is 10,000 SAR.