Corrected entry: In the opening scene, when Sabrina's voice-over introduces us to the family set-up, she states that a Rolls-Royce had been purchased. The camera then settles on a Bentley (probably a 1994 mulsanne model) which then features prominently throughout the film.
Corrected entry: It makes a nice happy ending to the movie that Sabrina's dad invested in stocks based on information he was told or heard as driver to the family and became rich. However, he almost certainly committed securities fraud by trading on inside information. I wonder if the director shot an alternative ending with him being hauled of to prison in chains?