It would depend on the type of work. In general, I'd never use or want a chauffeur unless it was necessary. I prefer the feeling of independence and self-responsibility.
Necessary could be: if one needs to talk to journalists or lobbyists on the way, as politicians do, or the workload is so great that one must keep working while traveling, or if a job involved travelling in a foreign country which drives on the opposite side of the road.
The newer car that I'd drive myself, because for one, I prefer that level of control, and two, that's how much I trust my own driving habits over those of others.