Another possibility:
Certain polyurethane foams and vinyls (the constituents of most car interiors) do not mix well/are damaged by Isopropyl Alcohol and/or other solvents. Did your daughter use any of that for interior cleaning/disinfection ?
Another possibility:
Certain polyurethane foams and vinyls (the constituents of most car interiors) do not mix well/are damaged by Isopropyl Alcohol and/or other solvents. Did your daughter use any of that for interior cleaning/disinfection ?