Not much. A couple of laughs, but mostly this is an embarisment. Burt tried to do this type of movie way too many times.
Leonard Maltin/Plot synopsis:
Just what civilization needs--more Reynolds car-chase silliness, inspired by the same cross-country road race depicted in THE GUMBALL RALLY and CANNONBALL. Pretty unendurable, despite unusual cast; rumor has it that the one responsible for casting Dino and Sammy as priests is still doing his Hail Marys. Followed by a sequel.