This is a system for displaying your Lego Speed Champions on a shelf! I didn't like hanging them on a wall, so I came up with my own system, which are designed to look like those Car Haulers on the highway.

The models come in separate pieces so that you can print the base and struts in separate colors. I also included different groupings of objects that will be helpful in printing them separately, if you don't have a multi-material machine.

I would suggest putting brim ears on the edge of the model, the side rails can be a bit tricky to print, and may end up coming unstuck while printing.