Ricky's car (infamously known as the "Shitmobile") has only been referred to by its name four times. Twice by Lahey and once by a female police officer in the episode "Where in the Fuck Is Randy's Barbeque." And also once by Bubbles.
The television programme playing on Ricky's television at the end of the episode is "The Littlest Hobo". It was a Canadian series made between 1963-1965 and 1979-1985.