Since I've started writing whatever I manage to remember from my dreams down, I noticed a very distinct and undeniable pattern - every dream had something to do with the things bugging me at that time.
I assume you dream the same way, about things that have been a concern for you lately. So you are somehow concerned about a car crash in real life. Thats all I can really tell you... Be careful on the road, to make sure it doesn't turn into a self-fulfilling prophecy
The latest dream that freaked me out was today actually, where I became a skinhead neo-nazi vampire with an umbrella that I poked people with. That goes against everything I stand for! I mean, who pokes people with an UMBRELLA? (not to mention that I am Jewish) I despise nazis, but I don't mind umbrellas or vampires, and I shave my head too... freaky