Answer:
The questions she should ask are:
Do I need this car or should I use my old car a little longer?
Is this a reliable vehicle?
Will buying this car prevent me from saving money to buy a house?
Step-by-step explanation:
All of these questions have relation with financial planning, meaning the precautions that have to take care when buying an expensive thing. The inversion she is making involves wonder if her old car is really necessary to be changed, if the car she wants to buy is proper to satisfying her needs and worth the investment and if she should leave some savings or spend it all.