quizkampen

So, I’m playing this game called Quizkampen, and this question popped up. I almost fell off my chair when I saw it, and nearly forgot to answer. Needless to say, I laughed for about ten minutes afterwards. I’ve only ever gotten questions about shows I have no knowledge about…
(I don’t really think it needs translation, but just in case, the question reads: What car do Sam and Dean Winchester drive in the TV show “Supernatural”?)