Buying advice Cayenne S (92A)

Hello dear community I have driven a BMW 530d for 5 years and made a lot of fun of driving. Now the family has become bigger and a good excuse for an upgrade It should be a gasoline SUV this time. I am between BMW X5 and Porsche Cayenne S. The tendency is more towards Zuffenhausen What do you think of that?https://suche.mobile.de/…/details.html?… First registration: 06/2015 Kilometer level: 51.900 km Fuel: petrol Power: 309 kW (420 hp) Price: 62.900 € It is a Leasing car. Accident-free. Front bumper is painted completely new just because of stone hits, the car gets two new tires in front and a new remote control for heating. According to the seller is a travel space of approx. 150€ inside. The car is being processed, therefore no photos. Should be there by the end of the week. I have a few questions. 1. Is this a good price? 2. Is 51.900KM too much for the price? I have seen Cayennes with less KMs but it is missing in comparison every Lots in equipment. E.g., Rear Entertainment is very important for the children and there are hardly any cars that have it 3. Am I going to miss the sports chrono? 4. Second maintenance is due at 60K. Is it an argument to lower the price? If so, how much should I expect for the second maintenance? 5. What should one generally pay attention to when buying Cayenne? Thank you in advance for your answers. Greetings.