I appreciate your effort to improve the disaster was before. I think research and analysis are good and solutions provided are functional.
Personally, I suffer the lack of a Home where i can see my last cars used or billing details, a control center about my activity with the App.
One more thing is the lack of brand, i can’t recognize a design system, your design looks very minimal, clear and this is good but I feel it aseptic. As user I wouldn’t mind which company do this service and in the oceans companies offering these services is a problem.