This week on The Best of Car Talk, between Being and Nothingness is—a loose heat shield? One listener suggests Tom and Ray’s baffling car advice is actually the dawning of a new line of deep philosophical thought. Elsewhere, Mary Jane hopes the guys can help save her marriage by not answering her husband’s call about his Ford Fairlane; Sandy may need to be bribed to get a diagnosis for her noisy Accord; David parked his Civic in the garage for a week and now the parking brake is stuck; and Barry can’t understand why his Mercedes is a bug magnet. Finally, why is Jeff’s CD radio messing up his cruise control? All this and more, this week on The Best of Car Talk.