And two more
Internet Movie Car Data Base
http://www.imcdb.org/ You have to search for specific movies / shows rather than browsing, and there isn't as much information as there is in the planes database, but it seems fairly comprehensive. No page for Lois and Clark, unfortunately.
Also helicopters (some overlap with the planes)
http://www.rotaryaction.com/ Entries have a lot of information - but again, no Lois and Clark.