A bottle of bourbon spilled in the trunk of our car. How can we remove stain and smell?
I definitely feel your pain! The key is to remove as much liquid as possible ASAP. Some squeegee/chamois cloths are always a great start. Then, remove the interior carpet (if possible) to insure that any adhesive and insulation material doesn’t get much of a chance to absorb the liquid. Also, the heat will actually evaporate a lot of the liquid, but may also drive the color and flavors further into these materials.
At a minimum, a good carpet/upholstery cleaner should be used on the trunk carpet. I would strongly consider using a very good steam cleaner. More than one cleaning will probably be required. Short of these being successful, you may need to consult a professional detailer.