* Chauffeur: This is the most common and formal term. It implies a professional driver who is employed to drive a private vehicle for someone else.
* Driver: A more general term, but still applicable.
* Personal driver: This term clearly indicates the driver's role is specifically for one person.
The best term to use depends on the level of formality and the specific situation. "Chauffeur" is generally the most appropriate for a wealthy person's hired driver.
