Needing Advice for a Cayenne
 

There is a cayenne for sale it is an 2005 Cayenne Turbo, 150,000 miles, immaculate car, a Porsche family has taken very good care of this car. They want 11500 for it. Nobody ever can predict what a car will last for, but based on the knowledge of this forum, can this run strong for 50,000 miles? what does an engine rebuild cost? any other comments would be greatly appreciated.