To estimate the price of the 2020 Chevrolet Tahoe LS V8 5.3L LS 2WD with 99000 km mileage in average condition, I focused on the selling prices of similar cars. The most relevant data point is a similar LS 2WD (Base) variant with 133000 km sold for 120000 SAR in January 2024. Another LS 2WD (Base) with 73600 km sold for 142000 SAR in March 2024, but it was in good condition. Considering the target car's mileage and average condition, its value should be lower than 142000 SAR. The LS 4WD (Base+) variant with 111000 km sold for 134000 SAR in January 2024, which is slightly higher due to the 4WD feature. The listed price of a similar LS 2WD (Base) with 73600 km was 147500 SAR, but listed prices are typically higher than actual selling prices. Based on these data points, the estimated market price for the target car is slightly above the 120000 SAR mark, considering its lower mileage compared to the 133000 km car sold for 120000 SAR.