After attaching an image, the "name" of the image appears as a link, and you can copy that link as your "URL", or click it to open the attachment in a new tab and copy the URL from the browser's address bar.
For this forum, it will look something like "https://www.chinacarforums.com/forum/attachment.php?attachmentid=xxxxx&stc=x&d=xxxxxxx"
I have attached a picture below named "Sample_1.jpg". The URL in this case is:
Code:
https://www.chinacarforums.com/forum/attachment.php?attachmentid=51413&stc=1&d=1594023111
Paste that within tags and you're done! Note that the thumbnail of the attachment will be visible too down below.
[IMG]https://www.chinacarforums.com/forum/attachment.php?attachmentid=51413&stc=1&d=1594024522
P.S.: Note that you can
attach up to five images with a post, but this forum only allows four
inline images in a post, so one will have to be left out (but still visible as thumbnail).