Calling all Proustians

TECHNO-ART Time I did another of these: pointing out allusions to technology in novels, plays, paintings and - more remotely - music. I am also on the verge of re-reading Proust. Now I seem to remember a passage in "A la recherche..." in which the narrator takes a ride in a car but it could take weeks, if not months, to come upon it in a cover-to-cover read-through. Can anyone with a better memory than me (or in possession of a sneaky Proust concordance) narrow it down?