TOKYO, Japan --- Toyota Motor Corp. is recalling about a quarter of a million cars worldwide, including more than 34,300 luxury vehicles in the U.S. because of potential cracks in the fuel pipes. The recall covers certain 2006 Lexus GS 300, IS 250 and IS 350 models in the U.S. The recall includes 49,000 flagship Lexus cars sold overseas, the company said. Included are Lexus models produced in Japan in 2005 and sold overseas, and Lexus, Mark X and Crown models sold in Japan, Toyota Motor Corp. spokeswoman Yoshie Matsuura told the Associated Press. A fuel pipe design problem could cause cracks and corrosion and lead to a fuel leak. In the United States, 26,274 Lexus GS300, 5,429 Lexus IS250 and 2,640 Lexus IS350 vehicles are being recalled, Matsuura said.