This week on The Best of Car Talk, Barbara's husband is a burper. At the gas station, he insists on shaking the car to squeeze in a few extra drops. Will Tom and Ray help Barbara convince her husband to stop belching out wacko ideas? Elsewhere, Denise's friend is coming from Germany, with his Citroen (assuming it fits the carry-on bin), and planning to drive it from New York to Minnesota. Will he make it past the Hudson River? Also, Steve's Check Engine light comes on only when he parks at the Pentagon; Kailash's mechanic told him his Escort has "Break Squeak Syndrome," but Tom and Ray think this diagnosis has one "s" too many; and, (another) Barbara needs help retrieving the keys that fell behind her dashboard, along with the dozen or so household items she's unsuccessfully used to try to retrieve them. All this and more, this week on The Best of Car Talk.