Warning! This comment is rated by the MPAA as "R".
Ever since we bought our Z a few weeks ago, I can think of only one thing when I happen to notice the vehicles which are the subject of this thread. I think Ahhhnold expresses that thought far better than I can (and maybe get away with it, but maybe not):
https://www.youtube.com/watch?v=VcgRaf38uCQ