This is a display stand/plate for a 1:18 scale Mega Construx Hot Wheels ‘77 Pontiac Firebird.  It was designed for this specific model, but it could easily be modified to fit other vehicles by simply changing the X/Y scale in your slicer of choice, or by modifying the file itself.  I’ve included a picture of the car for reference.

I had some issues with warping on the corners due to it being so large and flat, so I suggest using a brim or a raft to help keep it from peeling up.

I added a slot on the back side of it for a display board or plaque, which I also created for this project and can be found here:

https://www.printables.com/model/703813-hot-wheels-retail-package-template