I just edited my last post. If I'd have known you were to reply so quickly, I would have put that comment in this post instead. So now this post has no point - except to say I WIN!!
Naf: that could work if we were my Physics teacher...she says theres such things as negative distance, and up = down, 10/2=20, and other retarded shit like that. But since we're not, then no, you don't win.
But if there is negative distance, then we could travel backwards and thus travel back into the past. But what if you'd drive backwards into a negative distance? Wouldn't you be travelling forward? So if you drive back faster then the negative distance divided by time, then you'd end up in the future.