Dear Faldage: I was sure the word "chauffeur" had something to do with making something hot.
So your steam car could have two chauffeurs, one to steer, and one to keep boiler going.
chauffeur


SYLLABICATION:
chauf·feur
PRONUNCIATION:
shfr, sh-fûr
NOUN:
One employed to drive a private automobile.
VERB:
Inflected forms: chauf·feured, chauf·feur·ing, chauf·feurs
TRANSITIVE
VERB:
1. To serve as a driver for (another). 2. To transport in (a motor vehicle); drive:
chauffeured the guests around town.
INTRANSITIVE
VERB:
To serve as a driver for another.
ETYMOLOGY:
French, stoker, from chauffer, to heat, stoke, from Old French chaufer. See
chafe.