Ku qor sii wadida faqradan - Intii lagu jiray 1990, oo ay weheliyaan tartamayaashiisa Formula Saddex Heinz-Harald Frentzen iyo Karl Wendlinger, wuxuu ku biiray barnaamijka tartanka yar yar ee Mercedes ee Horyaalka Gawaarida Ciyaaraha Adduunka. Tani waxay ahayd wax aan caadi ahayn oo loogu talagalay darawal dhalinyaro ah: inta badan Schumacher's contemporaries waxay ku tartameen Formula 3000 oo ku sii jeeday Formula One. Si kastaba ha noqotee, Weber wuxuu kula taliyay Schumacher in la soo bandhigo shirarka jaraa'id ee xirfadeed iyo wadista gawaarida awoodda badan ee tartamada masaafada dheer ay ka caawin doonto xirfadiisa. Xilli ciyaareedkii 1990 ee Horyaalka Ciyaaraha Adduunka, Schumacher wuxuu ku guuleystay finalka xilli ciyaareedkii ee Autódromo Hermanos Rodríguez isagoo wata Sauber <unk> Mercedes C11, wuxuuna kaalinta shanaad ka galay Horyaalka Wadayaasha in kasta oo uu kaliya waday seddex ka mid ah sagaalka tartan. Wuxuu sii waday kooxda xilli ciyaareedkii 1991 ee Horyaalka World Sportscar Championship, isagoo mar kale ku guuleystay tartankii ugu dambeeyay ee xilli ciyaareedka ee Autopolis ee Japan isagoo wata Sauber Mercedes-Benz C291, taasoo keentay inuu dhammeeyo kaalinta sagaalaad ee Horyaalka Wadayaasha. Wuxuu sidoo kale tartamayay Le Mans inta lagu jiray xilli ciyaareedkaas
, wuxuu ku dhameystay kaalinta shanaad baabuur ay wadaageen Wendlinger iyo Fritz Kreutzpointner. Sannadkii 1991, wuxuu ku tartamay hal tartan oo ka tirsan Horyaalka Japan ee Formula 3000, isagoo kaalinta labaad galay.