Ertl did some diecasts in 1/24th and 1/87th and they're GMCS!
Lavender one bottom right and yellow one upper left:
Remember Stompers?

I have the ones my son had,too. He'll probably want them one day. Same with my youngest son. I saved all their stuff. Actually bought some duplicates of my youngest's toys just in case he cared enough to have mint vintage versions when he grew up. Hey,when your dad's a collect-o-maniac...