This week on The Best of Car Talk, Wendy is worried that her mechanic’s difficulty diagnosing her noisy Golf is affecting his mental health. Is a round of baked goods therapy the cure? Meanwhile, Robin is having her own issues with guilt after forsaking her regular mechanic and taking her Corolla to the dealer for its 30,000 mile service. Also, Jonathan doesn’t know whether to celebrate or fear winning the argument with his wife over speed bumps; Tina’s brake problem could be her ticket to stardom in Vegas; and Scott’s uncle suggested he unplug his Accord’s odometer to keep its mileage down. We probably don’t need to tell you this, but Scott’s uncle is a used car salesman. Will Tom and Ray advise Scott on how to do this, or call the Feds? All this and more, this week on The Best of Car Talk.