I have to preface this dream by saying my father used to have a very old car and it was one of those cars that had heaters behind your legs. So every time we would get into the car we would burn our legs.
So the dream is basically, we're going down this hill and I'm sitting in the back of the car with my sister and we're burning our legs. We're looking ahead and suddenly we realize no one is driving the car. We're going down the hill and my sister is saying "You know, it doesn't matter because we are burning our legs. So, if we crash, our legs will stop burning." That's the end of the dream.