Two things came to mind when I watched this.
1) That is probably the ugliest car featured in a series in the entire history of Television. Or maybe it's a Fred Gwynne thing. The Munsters' car was pretty damned hideous.
2) I'm trying to imagine the expressions on the faces of the male singers as they sang the theme song.
As a kid, I enjoyed this series. It was stupid enough to appeal to me then. I don't think I could sit through it now. I didn't realize that the opening sequence was different every week. Seems kind of unusual to me.