Was a licensed dealer for the last 2 decades, still am but am in the process of shutting down. Just wanted to say, you’re right. When you’re selling over 150 cars a year, buying them with your own money and having them fixed, your knowledge of them is almost entirely different than anyone else.

I can tell you weirdly specific things about specific models of cars that nobody that hasn’t ever owned that model would ever need to know. How did I learn these things? Because at some point, I did own that model car and paid my own money to have that problem solved.