I agree with @BrianH - think about why you want this tattoo, and what about the experience you want to commemorate? What do you want this tattoo to do for you? Sometimes choosing non-literal imagery that symbolizes the feeling you are going for is a lot more successful than going for a very literal image. For example, if you want to commemorate survival, I think a phoenix could be cool. Or if it's about luck, see the suggestions above. Or if it's about a near-death experience, I like the reaper idea above, or even something like a skull, which to me is the most classic memento mori. There are a lot of amazing options if you think outside of the box a bit and go for the thing that feels right rather than what represents it most obviously.
what about the the crash do you want to remember when you look at the tattoo?
the near death experience? maybe a grim reaper
the violent twisted metal? maybe bio mech
how lucky you were to survive? a traditional horse shoe, four leaf clover, or other lucky symbols
the unlucky Friday the 13th date? lots of traditional Friday the 13th tattoo designs to choose from
