Rubuta ci gaba don wannan sakin layi - A 1987 ya yi gasa a gasar cin kofin duniya ta farko na motar yawon shakatawa don Eggenberger Motorsport aikin Ford ya tuka RS Cosworth da RS500 na Ford Sierra. Abokan wasansa na gasar sun kasance biyu na Jamus ta Yamma Klaus Ludwig da Klaus Niedzwiedz da kuma Ba'amurke Steve Soper, wanda ya kasance abokin aikinsa na yau da kullun. Ya lashe zagaye na 8 na gasar zakarun Turai, Bob Jane T-Marts 500 a Calder Park Raceway a Ostiraliya, wanda aka gudanar a kan hanyar da aka haɗu da hanyar hanya da kuma NASCAR-style "Thunderdome" mai girma, yana tuki tare da Soper, kuma ya gama na biyar a gasar (Dieudonné da Soper sun lashe Bathurst 1000 a Ostiraliya mako guda kafin tseren Calder, amma an hana su saboda gyare-gyaren ƙwallon ƙafa na doka). Ya gama na uku a cikin ETCC a cikin kakar 1988, kuma don Eggenberger. Dieudonné ya yi gasa a zagaye ɗaya na Gasar Motocin Ziyara ta Burtaniya ta 1989 don JQF Injiniya tare da Chris Hodgetts a cikin Ford Sierra RS500. A wannan shekarar kuma ya kasance mai nasara a shekarar 1989 na 24 Hours na Le Mans GTP Class tare da Hodgetts da David Kennedy don Mazdaspeed. 1991 24 Hours na Le Mans
ya gan shi ya gama na takwas don Mazdaspeed a cikin Mazda 787 a cikin Class C2.