To estimate the price of the 2014 Mazda 3 I4 1.6L V (Base) with 234000 km mileage in average condition, I primarily considered the selling prices of similar cars. The closest match is the 2016 Mazda 3 I4 1.6L V (Base) with 231000 km, sold for 34000 SAR on 2024-04-03. Given the 2-year difference, I applied a depreciation rate of 10% per year, resulting in a 20% total depreciation. This brings the estimated price to 27200 SAR. Additionally, the listed price of a similar 2014 Mazda 3 I4 1.6L V (Base) with the same mileage is 21000 SAR, which is likely higher than the actual selling price. Considering these factors, I adjusted the estimate slightly to account for market conditions and the car's condition.