To estimate the price of the 2014 Chevrolet Suburban V8 5.3L LT 2WD (Mid) with 290000 km mileage and average condition, I considered several data points. First, I looked at the selling prices of similar cars: a 2012 LT 4WD (Mid+) with 210000 km sold for 33500 SAR, a 2015 LS 2WD (Base) with 241500 km sold for 59500 SAR, and a 2014 Premium 2WD (Top) with 115137 km sold for 60000 SAR. Given the target car's higher mileage and average condition, its value should be lower than these. Next, I reviewed listed prices: a 2014 LT 2WD (Mid) with 290000 km listed for 58000 SAR, a 2015 LS 2WD (Base) with 292000 km listed for 63500 SAR, and a 2013 LT 2WD (Mid) with 349000 km listed for 55000 SAR. Considering the target car's condition and mileage, its market value should be lower than these listed prices. Combining these insights, I estimated the market price accordingly.