Buuxi weedha soo socota: Sidoo kale 1971, "Stichting Autoraces Nederland" (Aasaaska tartamada gawaarida ee Nederland) wuxuu u shaqaaleysiiyay Surtees TS7 si uu ugu soo bandhigo F1 kulankiisii ugu horeeyay ee GP-ga gurigiisa halkaas oo uu ku dhammeeyay siddeedaad sharaf leh GP aad u qoyan. Sannadkii xigay Van Lennep wuxuu ku guuleystay 1972 Rothmans European Formula 5000 Championship isagoo wata Surtees TS11 iyo McLaren M18. Waxa kale oo uu laba jeer u safray kooxda Williams GP, isagoo kasbaday dhibcihii ugu horreeyay ee Horyaalka Adduunka isagoo kaalinta lixaad galay 1973 Dutch Grand Prix. Ensign, wuxuu dhaliyay dhibco labaad
1975 Jarmalka Grand Prix, isaga oo ka dhigaya kii shanaad ee ugu guulaha badnaa ee Dutch Formula One ka dib Max Verstappen, Jos Verstappen, Carel Godin de Beaufort iyo Christijan Albers.