This week on The Best of Car Talk, Doug’s dashboard began billowing smoke the first time he ran his defroster. His wife diagnosed it as roasting bugs, and Doug forgot Tommy’s first rule of marital happiness when he told her, “You’re nuts.” Could she have been right, and can Doug get out of the doghouse? Elsewhere, Alex may need help finding closure over his beloved pickup, while Christine can’t decide whether to accept her parents’ offer of their Buick station wagon; and Tracy wishes someone would haul away the mysterious Stanza that’s been sitting in front of her house for the last two months. Also, can Jim use an old transmission to run his potter’s wheel? All this and more this week on The Best of Car Talk.