Used cars of the past tended to have a single major problem which made the decision to walk away from the car easy. Not so with modern used cars and their electronics
Instead their electronics systems fail individually, and gradually over time which leads to the car nickel and diming you into the poor house as you go around the car replacing each electronic system. Individually.
Probably THE most insightful video about modern used cars and the problems of maintaining them. The decision to walk away wont be easy
The crushing insight to modern used car maintenance starts here > https://youtu.be/h9_5uIeQuTA?t=8m30s