Rubuta ci gaba don wannan sakin layi - Simmons ya koma Indy Lights Series (a baya Indy Pro Series) a farkon kakar 2008, yana tuki don Team Moore Racing. An ba shi damar dawowa zuwa IndyCar Series, kodayake na ɗan lokaci, don fitar da shigarwa ta biyu don A. J. Foyt Enterprises a cikin 2008 Indianapolis 500
kuma ya cancanci 24th. Ya hanzarta hawa filin a tseren har sai wani hatsarin da ya faru ya lalata motar. Rashin aikin injiniya a ƙarshe ya tura shi cikin bango a lokacin faɗakarwa, wanda ya haifar da ƙarshen 28th.