This week on Car Talk, Tom and Ray delve into the complexity of the mother-daughter relationship. Since they fit into neither category, fortunately their own Mom and sister both weigh in. All of this is prompted by Nancy’s ill-advised decision to tell her adult daughter she waited too long to rotate her tires. Elsewhere, Herbert loves his VW, except for its annoying habit of bursting into flames; Ronnie Sue’s underwear came to the rescue when she burst a heater hose; and can all of Tom and Ray’s behavior be symptoms of an obscure German medical condition called “Witzelsucht”? All this and more, this week on Car Talk.