If you have a car with a caved-in roof, there are a few things you can do to fix it. First, try to remove any loose tiles and screws that may be on the roof. If that is not possible or if the screws are too tight to remove, then you can try using a vacuum cleaner and bucket to suck out as much of the water and debris as possible. Once all of the water and debris has been removed, you can then repair or replace the roof using some of the following methods:

  1. Use a caulking gun to put caulking around all of the edges of the roof so that it is fully sealed.
  2. Use nails or screws to attach new tiles or boards to the roof in place.
  3. Use a tarp or other cover to keep rain from getting into your car and causing further damage.