<prompt> Qedela umusho olandelayo: Ngo-1954 eSpanish Grand Prix uRosier wangena eMaserati 250F entsha, futhi waqeda endaweni yesikhombisa. Ngo Rosier wabuyela ukungena kuphela imoto eyodwa yena. Wathatha umhlalaphansi eMonaco futhi waqeda endaweni yesishiyagalolunye eBelgium naseNetherlands. URosier waphinde wangena eMaserati. Uqale isizini ngokuhlala eMonaco ngaphambi kokuqeda endaweni yesishiyagalombili ku  <response>: IBelgium neyesithupha eFrance. Ngemva kokuqala njengomuntu wamashumi amabili nesikhombisa eBrithani, uRosier wayeka emzuliswaneni wamashumi amabili nantathu lapho ugesi wakhe uhluleka. I-German Grand Prix ka-1956, lapho uRosier aqeda khona endaweni yesihlanu eqinile, yaba yiGrand Prix yokugcina ka-Ecurie Rosier ngoba uLouis Rosier washona ngenxa yokulimala akuthola engozini emzileni waseMontlhéry, eningizimu yeParis, eFrance ngo-Okthoba 7, 1956. 