Pedzisa mutsara unotevera: Muna 2003 GRM yakavaka motokari yechipiri yemutyairi wemotokari inofamba Peter Brock iyo yaizoita kuti iite chikwata chayo mumutambo wechipiri wekambani paSymmons Plains muTasmania. Brock akanga atyaira Monaro yeBathurst yakakunda pamakwikwi okutsigira Nations Cup pa
2003 Australian Grand Prix muMelbourne pamberi pokutanga kwemakwikwi masvondo mashomanana gare gare muAdelaide. MuMelbourne motokari yakamhanya neBrock yakakurumbira #05 panzvimbo peyakajairika #427, ichikunda makwikwi ose mana mushure mekurwa neLamborghini Diablo yaPaul Stokell, kunyange zvazvo Brock akabvuma kuti angadai asina kukunda chero ipi zvayo yemakwikwi aya kana Stokell asina kurova dambudziko mumakwikwi ose. Akabva atyaira motokari itsva, akapendwa mutsvuku uye, kusvikira pakupedzisira mumutsara, pasina Monaro zvikwata kutsigirwa kweJust Car Insurance (GRM's usual major sponsor muV8 Supercars yaiva Valvoline), muNations Cup Championship pamwe chete naPretty, kunyange zvazvo asina kukunda Nations cup round kana kuti nhangemutange kusvikira mumutambo wokutanga wekupedzisira kuSurfers Paradise. Pretty naBrock vakapedza vari wechitatu nowechina mumakwikwi a2003.