This week on Car Talk, a Massachusetts man begins speaking with a French accent after an accident. Thus we are introduced to Foreign Accent Syndrome, a neurological oddity which Tommy will be happy to explain, if he can ever stop laughing. Elsewhere, what goes in, must come out—unless ”it” is a piece of the Berlin Wall, stuffed into the trunk of a BMW. A few thousand miles away, John is having the opposite problem—his Bronco’s dipstick refuses to stay in. Also, should Julie fess up about her fender bender in the family van? And, Crystie dropped a nail into her gas tank, and is worried about an explosion. Her mechanic and the Chevy dealer refuse to take her seriously—and she thinks Tom and Ray will? Find out, this week on Car Talk.