Yes you can, just download a car file put the file in your nascar sim racing directory in the nascar cup file under cars and then import it from the options menu in the game, but NR2003 cars will not work with NASCAR sim racing
this does nothing to prove that Amerians are brain dead. makes no sense at all. based on choice of race type come on give it a break. Nascar must not be a joke with all the fans out there. it is also something enjoyed by families
Do you have nascar racing 2003 or nascar sim racing?? If its nascar sim racing go into sound options and adjust there and if its nascar racing 2003 you can download better sounds online on various sites like bhmotorsports.com or simracingworld.com