I noticed in a past news post on her website that she mentions almost dying in a previous record attempt, and facing the reality of her mortality before setting a new record immediately after her friend and mentor died from cancer. So evidently she was very aware that this was a possible end game for her. I admire that she had such an intense passion.
I hope/expect people involved know that. The land speed record seems pretty brutal (https://lsrdeaths.webs.com/), behind the water speed record where people should probably just assume death at this point.
It must be a lot of passion to keep someone doing this.