Nyorai kupfuurira kweiyi ndima - Muna 2003 GRM yakavaka mota yechipiri yemutyairi anozivikanwa wemotokari yekufambisa Peter Brock uyo aizoita kutanga kwake munzira muKutenderera 2 yemakwikwi kuSymmons Plains muTasmania. Brock akanga atyaira Bathurst achikunda Monaro pamakwikwi ekutsigira Nations Cup pa2003 Australian Grand Prix
muMelbourne pamberi pokutanga kwemakwikwi masvondo mashomanene 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.