I'm researching the options on the net, and on some sites such as here certain options are shown to be "PIO" which I now understand to be "Port Installed Options." Some (mats, cargo net, first aid kit) go one further and add "(fleet)." What's "fleet'' mean in this case?
The link would clarify - these three options say "fleet" and there isn't another callout for them that doesn't say "fleet."
IMO it doesn't matter as you shouldn't buy them with the car. After you buy the car you'll learn you can get a discount at the Parts Dept. If you want the stuff buy it then.
