To estimate the price of the 2013 Jaguar XJL V6 3.0L Premium Luxury (Top) with 100000 km mileage and average condition, I considered several data points. First, I looked at the selling prices of similar cars. A 2013 Jaguar XJL V6 3.0L Supercharged with 81603 km in good condition sold for 52000 SAR on 2023-10-13, and another with 90000 km in average condition sold for 38000 SAR on 2024-01-21. A 2014 model with 151000 km in average condition sold for 50000 SAR on 2023-11-05. A 2015 model with 90500 km in good condition sold for 59000 SAR on 2023-11-21, and another 2015 model with 169000 km in average condition sold for 46000 SAR on 2024-03-16. Given the target car's higher trim (Premium Luxury) and average condition, I adjusted the price slightly higher than the average of these selling prices. Additionally, I considered the listed prices of similar cars, such as a 2013 Jaguar XJL V6 3.0L Premium Luxury listed for 39500 SAR, and other 2013 models listed between 39000 and 52000 SAR. Taking into account the car's trim, condition, and market trends, I arrived at the final estimate.