"X is the Cadillac of Y" in TV shows

That must be in season four. Is it an electric drill or an electric nail gun? I’ve been trying to avoid spoilers for season four, but I’ve seen references to a character using a nail gun. ::shudder::

The Wire also used the comparison in season two, when Ziggy’s unloading a container of digital cameras. I don’t think he mentioned a brand, but he did say “this is the Cadillac of cameras”.