cant list a car on here.?

Hello Peter. You will find your answer here

https://help.trademe.co.nz/hc/en-us/community/posts/4413127878029-Unable-to-list-item-Very-frustrating?page=1#community_comment_4763759019161

Kia Ora Peter,

You need to be on the Desktop site to List a car - if you are on the Desktop site try clearing your cookies & cache How to Clear Your Browser Cache & Cookies: On Any Browser

If you're still stuck there try the workaround given below...