To estimate the price of the 2020 GMC Yukon Denali V8 6.2L Denali (Top) with 66742 km mileage, I considered the following data points: 1) A 2019 GMC Yukon Denali V8 6.2L with 74000 km sold for 170000 SAR on 2023-12-31. This car is very similar in terms of variant and engine size but is one year older and has slightly higher mileage. 2) A 2022 GMC Yukon AT4 V8 6.2L with 20000 km sold for 250000 SAR on 2024-03-27. This car is newer and has lower mileage but is a different variant. 3) A 2022 GMC Yukon AT4 V8 5.3L with 38000 km sold for 237000 SAR on 2024-03-04. This car is also newer and has lower mileage but a different engine size and variant. 4) A 2018 GMC Yukon SLT V8 5.3L with 205700 km sold for 120000 SAR on 2023-10-12. This car is older, has a different variant and higher mileage. 5) A 2019 GMC Yukon V8 5.3L with 175000 km sold for 106000 SAR on 2024-03-07. This car is older, has a different variant and much higher mileage. Considering the closest match is the 2019 Denali sold for 170000 SAR, I adjusted for the one-year difference and lower mileage of the 2020 model to arrive at the estimate.