This week on Car Talk, Melissa Peterson (a.k.a., “That Little Twerp”) returns with another helpful Car Talk critique. How can Tom and Ray manage to be hippies and geeks at the same time? Elsewhere, Quentin needs to decide whether to take his grandfather’s Dodge Dart Swinger, or keep his blood pressure regulated by just taking Grandpa’s hat from the front seat. Also, Beth’s trailblazing adventure left her Jetta missing a few parts she hopes are non-essential; newly unemployed Bernadette is considering a move from one non-profit to another by entering the world of auto-repair, and on Stump the Chumps, we find out if Geoff’s noise really was the sound of one pad slapping. All this and more, this week on Car Talk.