Motorcrash

i'm pretty sure i read someting about it being about a little girl who shows up at all the motorcrashes. she takes the mother (because she likes mothers the most) and sneaks off with her and nurses her back to health and then the mother's husband comes to the girl's house and asks his wife where's she's been all this time.

I remember it was my older brother who told me:

"She didn't actually have a motorcrash."

If you want to get really deep into it, I'd say it could be about a young girl suddenly taking interest in other people's romantic relationships now that she's had one of her own. She never noticed other people's romantic ordeals, but now she gets a little experience ("since she got that bicycle"), and suddenly she's much more observant of others with more experience ("cars") and their more complicated accidents.

In this case, she might even be meddling a bit.

This was the first song I remember hearing that wasn't on the radio. To me it meant the end of commercial rock music. I think the lyrics are about how experiences you have when you are very young can leave a very surreal and emotional memory.