You need to understand that they are police vehicles, no matter how well maintained they were they still have a ton of idle hours and they ARE driven hard 24/7 . What I found is most tahoes in my department around 150k have major issues and don't survive much past that. That being said it is a city vehicle. I personally own an ssv tahoe so I'm not saying don't buy a former police vehicle but I would never buy one with that many miles, don't care how well maintained it is. Price difference between a ppv tahoe under 100k miles and 150k+ is usually only a few grand but that translates into 2-3 years of driving and not to mention about 1000hrs idle time.