U.S.-based Yokohama Tire Corp. (YTC) is supplying Advan-branded tires for use in three racing series that Porsche AG is holding in the U.S. over the second half of this year. These will be used as control tires in the Porsche Sprint Trophy USA West, the Porsche Sprint Trophy USA West Invitational and the Porsche Air-Cooled Cup USA. Specifically, the Yokohama…