Here's another hint.
So you want to make a gallery of your vehicle pics...
So you upload about 10 or so of your size-prepped-descriptively-named-photos to make a gallery of photos of your vehicle. One vehicle at a time I think, if you own more than one that is, simply to prevent getting muddled up.
You upload, upload, upload... one photo at a time as required and the Wiki makes a new file page for each -- "But wait!" you say - "What was the photos' file address on wiki?" "How will I go back and get all those important photo addresses to make up a gallery?"
Answer.
Wiki keeps a log of all uploads and edits, you go to that page in a new window, keeping your edit page for your gallery open.
Then you copy & paste the file addresses listed there on the "Recent Changes" report.
Easy! Wiki lists them all there for you to use to make a gallery.