For 2008 Bernoldi, signed a contract with Rocketsports for the 2008 Champ Car World Series. However, following the reunification of Champ Car and the Indy Racing League, Rocketsports withdrew, opting not to compete in the new, combined, series. It was later announced that Bernoldi would drive for Conquest Racing in the newly combined series' 2008 season. His best result was fourth, in the final Champ Car-sanctioned race at Long Beach. His best result in the reunified IndyCar Series was fifteenth at the 2008 Indianapolis 500. A collision with teammate Jamie Camara at Watkins Glen lead him to publicly criticize the team, and speculation that he might leave them. A thumb injury ruled him out of the final two races of the season, his seat being filled by Alex Tagliani.