To estimate the price of the 2014 Ford Expedition V8 5.4L XLT (Base) with 222000 km mileage, I first looked at the selling prices of similar cars. One car with 174000 km sold for 48000 SAR and another with 188000 km sold for 51500 SAR. Given the higher mileage of the target car, its value would be lower. Next, I reviewed listed prices: 66000 SAR (222000 km), 38000 SAR (220000 km), 44000 SAR (227000 km), 50000 SAR (215000 km), and 43000 SAR (243300 km). Considering the condition and mileage, the listed prices suggest a range of 38000-50000 SAR. The average of these prices, adjusted for the higher mileage and good condition, leads to a reasonable estimate.