You know, they could have made Sam refusing to do the car-repair thing. Made him go all emo and saying that he's going to save Dean and all that. I'm GLAD they didn't. It's SO MUCH BETTER they way it was. Somehow, even if Sam didn't say it, I still *got* it, that he's going to save Dean, and he's going along, well, not exactly to humour Dean, but because he knew that it'd make Dean happy to see Sam take care of his baby. Am I making sense?