<Li> Bonnie Hunt as Sally Carrera, a Porsche 996 - series and Lightning's girlfriend . </Li> <Li> Chris Cooper as Smokey, Doc's former mechanic and crew chief, who helps McQueen train for the Florida 500 . </Li> <Li> Nathan Fillion as Sterling, a rich business car who runs the elite training facility Rust - eze Racing Center . </Li> <Li> Tony Shalhoub as Luigi, a Fiat 500 . </Li>

Who does the voice of sterling in cars