Mentions and/or depictions of:

Suicide
Therapy
Schizophrenia
Anxiety
Panic attacks
Dark thoughts
Dangerous actions
Death
Grief
Lead foot

Disclaimer:

I do not encourage anyone to drive or ride past the speed limit, especially when not in a good state of mind. If you want to speed (because who doesn't), find an empty race track and take all safety precautions, including having a trusted person check in on you regularly. Speeding accidents are not fun, and you aren't always capable of calling for help.

Stay safe.