Thanks for the response!
I attempted this, still no luck... from objects.lua -> object.lua (no result) then object.lua -> object.lua (no result)
I'm going to try and recreate the file from scratch and see if that fixes it.
I'm unsure why it's not working as I have done 2 maps which work fine, I am using the same method so I am just baffled.
edit... After recreating the objects.lua from scratch using WorldEd, I now have foraging working on one of my cells but not the other... and still no car spawns.