Rubuta ci gaba ga wannan sakin layi - Domin 2008, Carpenter ya dawo tare da Vision Racing don fitar da lambar 20 Dallara-Honda. A lokacin budewa na Gainsco Auto Insurance Indy 300 a Homestead, Carpenter ya cancanci a matsayi na biyu, amma an soke lokacinsa kamar yadda motarsa <unk> da kuma motar abokin aikin A. J. Foyt IV <unk> ba su sami gwajin fasaha ba. Duk da farawa a baya, Carpenter ya yi aiki ta hanyar tsari don gamawa a matsayi na 6. Carpenter ya kara da wani na shida a Indy Japan 300 a Twin Ring Motegi. A Indianapolis 500
, Carpenter ya cancanta a matsayin na 10 kuma ya gama a matsayin na 5, yana jagorantar zagaye 3. Bayan tsere takwas, Carpenter ya kasance na takwas a cikin maki, duk da haka, Carpenter kawai ya sami manyan goma a Firestone Indy 200 a Nashville da Meijer Indy 300 a Kentucky. Carpenter ya ƙare shekara tare da haɗari mai haɗari a cikin Peak Antifreeze Indy 300 a Chicagoland yayin da yake gudana a cikin manyan biyar. Carpenter ya gama kakar wasa a matsayi na 15th, tare da maki 320.