When Maggie buys Herbie from Crazy Dave, she pays $75, which was the same amount of money that Jim Douglas paid to buy him in the original The Love Bug (1969).
For this film's "sneak preview screening" day, (on Sunday, June 19, 2005), Disney offered free tickets to anyone named Herbert or any derivation thereof (Herb, Herbie, et cetera).
Director Angela Robinson said in the commentary that she purposely left hidden crew equipment and cheap camera tricks in the film to give Herbie fans something to look for that was fun, and also just to simply aggravate her editor, who practically begged her to fix the problems before the film was released.
Before release, Disney decided that Lindsay Lohan was a bit too busty for the image they wanted for the film, and used digital techniques to reduce her bust size.