Just had to share this as this brought up an interesting point. Today I got my 6-yr old cousin a Movie Cliffjumper, So while me ad his father were outside cleaning our cars he was "air-racing" Cliffjumper and BB to see who would be the "fastest". He then stopped, noticed what we were doing, and walked over to us and asked, "Transformers turn into cars right?" And we were like "Yeah..." He then asked, "So how do they clean their insides?" Me and his pop just looked at each other completely stumped. Soooo....anyone have any ideas?