Michael: Well, 'Bill Board', that's quite an unusual name. I'd guess you take some ribbing from that.
Alex: Yes, some. But not as much as my brothers...Chip and Switch.
Alex: (Asking about the name for her mythical boyfriend Elaine made up on the spot while looking out the cab window.) Bill Board?
Elaine: You don't know how close you came to being Karmann Ghia.
This was an important episode in the evolution of Alex and Elaine's relationship, as it's one of the few that teases the audience that there could be romance between them. Also note that this is one of the few episodes in the first three seasons not directed by James Burrows.