* In [[3.10 Dream a Little Dream of Me]], director Steve Boyum had the side spotlights removed from the Impala in order to mount cameras.<ref>[http://blacklid.livejournal.com/77660.html#cutid1 Steve Boyum removes spotlights from the Impala]</ref> In May 2008 a fan campaign was started to get them restored.<ref>[http://community.livejournal.com/spn_spotlights/ Fan campaign to restore the spotlights]</ref>
* The LEGO and plastic Army Men that Sam and Dean later put into the Impala can be seen in the flashback in young Sam's motel room in [[11.08 Just My Imagination]]
* [[Sam and Dean's Initials]] were carved into the car when they are kids. They are seen in flashback in [[5.22 Swan Song]] and [[11.04 Baby]].
* The Impala has been seen towing a trailer once when they use it in [[14.12 Prophet and Loss]] to tow the [[Ma'lak Box]].