Will there be a rhd model? and if so can you make a yellow euro plate for the back, so it looks like uk?
just a small suggestion: a sunroof or ideally an open air roof system (sliding canvas roof, no bias here on them whatsoever)
Technically you can model a back side of the plate manually and put there but it would be kinda too much effort for this
some little things you could do, is add a rust harlequin paint design, and maybe if you can, add some more corrosion such as rust to the “Rust” skin.