To estimate the price of the 2017 Cadillac CT6 V6 3.6L Sport (Mid) with 176000 km mileage, I focused on the listed prices of similar cars. The closest match is a 2017 Cadillac CT6 V6 3.6L Sport (Mid) with the same mileage listed for SAR 87500. Other relevant data points include a 2017 Cadillac CT6 V6 3.0L Turbo Charged with 166000 km listed for SAR 92500 and a 2017 Cadillac CT6 V6 3.0L Twin Turbo with 157000 km listed for SAR 106000. Considering the car's average condition and the fact that listed prices are generally higher than selling prices, I adjusted the estimate downwards from the listed price of SAR 87500.