(AGI) Houston, Sept 8 - The U.S. has become the biggest Ferrarimarket, accounting for 30 percent of overall sales. Secondquarter data confirmed that the Cavallino brand sold 2,035 carsin 2013, with a nine percent increase over 2012. FollowingSergio Marchionne's criticism, Luca Cordero di Montezemolo saidthat Ferrari had become American. But the head of the team,Marco Mattiacci, said that the supply to the Haas Team, theU.S. team expected to compete in Formula One in 2016, should gobeyond the traditional supply of engines. . .