 Nyorai mberi kweiyi ndima - Muna 2003, Carpenter akatanga kukwikwidza muIndyCar Series yePDM Racing muNo. 18 Dallara-Chevrolet. Carpenter akaita kutanga kwake paDelphi Indy 300 paChicagoland Speedway; akatanga ari pachinzvimbo chechi16 uye akapedza ari pachinzvimbo chechi13. Carpenter ipapo akakwikwidza paToyota Indy 400 paCalifornia Speedway, achitanga ari pachinzvimbo chechi17 uye achipedza ari pachinzvimbo chechi13, ari pasi nemakona maviri. Mumakwikwi ekupedzisira emwaka weChevy 500 kuTexas Motor Speedway, Carpenter akatanga ari pachinzvimbo chechi22 uye akapedza ari pachinzvimbo chechi21 nekuda kwezvinetso zvealternator mushure mekupedza malap 69. Carpenter akapedza mwaka ari pachinzvimbo chechi26 aine mapoinzi 43. Muna 2004, Carpenter akamhanya mwaka wake wekutanga wenguva yakazara weRed Bull Cheever Racing muNo. 52 Dallara-Chevrolet. Mumwaka wokutanga weToyota Indy 300 paHomestead-Miami Speedway, Carpenter akatanga ari pachinzvimbo chechipfumbamwe uye akapedza ari pachinzvimbo chegumi nembiri. Munguva yemwaka, Carpenter akatambura kuti aenzane nemhedzisiro yemumwe wake Alex Barron. Kuguma kwakanaka kwaCarpenter kwaiva nzvimbo yechisere paBelterra Casino Indy 300 paKentucky Speedway. Carpenter akakwanisa kumhanya Indianapolis 500, kutanga ari pachinzvimbo chechi16 uye kupedza ari pachinzvimbo chechi31 nemhaka yekudonha pashure pemakumbo 62. Carpenter akapedza mwaka ari pachinzvimbo chegumi nenhanhatu, aine 245 mapoinzi. Muna 2005, baba vokurera vaCarpenter Tony George vakatanga timu itsva inonzi Vision Racing mushure mekutenga michina kubva kuKelley Racing. Carpenter akatyaira nokuda kwechikwata muNhamba 20 Dallara-Toyota. Mugore, Carpenter nechikwata vakatambura; kutanga kwake kwakanakisisa kwaiva nzvimbo yechi16 paSunTrust Indy Challenge paRichmond International Raceway. Carpenter akapedza zviri nani paFirestone Indy 200 paNashville Superspeedway aine nzvimbo yegumi, rimwe denderedzwa pasi. Carpenter akakwanisa kumhanya Indianapolis 500, achitanga ari pachinzvimbo chechi26 uye achipedza ari pachinzvimbo chechi11, achipfuura nekana rimwe chete. Carpenter akapedza mwaka ari pachinzvimbo chegumi nesere, aine 244 mapoinzi. 