 Motoyama akakwikwidza pa 24 Hours of Le Mans kanokwana kana, achitanga muna 1998 neNISMO naTom Walkinshaw Racing mune imwe yechina yefekitori Nissan R390 GT1. Motoyama, Masami Kageyama, naTakuya Kurosawa vakatyaira 33 JOMO R390 GT1 kusvika kunzvimbo yegumi yekupedzisira, yechipfumbamwe muchikamu cheGT1. Motoyama akadzoka gore rakatevera racho muna 1999naNISMO, vachityaira Nissan R391 Le Mans prototype itsva. Motoyama uye co-vatyairi Érik Comas naMichael Krumm vakamhanyisa kusvika panzvimbo yechina yakazara mu 22 R391, vasati vasiya basa mushure memaawa 110 nechinetso chemagetsi. 