This week on Car Talk, it's a very Merry Christmas for mechanics across the country, thanks to Jennifer's leaky radiator, Billy's cooked clutch, and Mike's El Dorado with a slight steering problem--he can't turn the wheel. But, it's not all bad news, as Mary Jo in South Carolina is about to win an argument with her husband over the state of their windshield. Also, be on the lookout for a new bumper sticker, courtesy of Lauren in Maine: "This car rode the emergency brake down Mount Washington," thanks to her boyfriend. All this, plus remembrances of some really lousy Christmas gifts, and lots more, this week on Car Talk.