automobilist

from WordNet (r) 3.0 (2006)

automobilist
    n 1: someone who drives (or travels in) an automobile [syn:
         {motorist}, {automobilist}]

from The Collaborative International Dictionary of English v.0.48

Automobilism \Au`to*mo"bil*ism\, n.
   The use of automobiles, or the practices, methods, or the
   like, of those who use them. -- {Au`to*mo*bil"ist}, n.
   [Webster 1913 Suppl.]