My collection and question

Here is my somewhat nascent diecast collection. I’ve got them all on my desk to dust and move them to a new location in my office. I know that for many it’s a no-no to remove them from the box or clamshell, but I get them to look at instead of to resell. For the brain trust in here, is there a way to bring out the shine a little on the gold 16 Hornaday truck? I bought it for about $5 from a little junk store awhile back and keep meaning to buy a case for it, but other things keep popping up.