Answer:
I read the book long ago (maybe like last year in march/may)
I think the mustang cars were the ones ridden by the greasers
sooo the purpose would be to travel
It would be epiccccccccccccccccccc (had to have 20)
Worry, anxiety, nervous, overthink, agonize, etc.
Something destined to be undesirable
it could also mean to be anxious