We're huge fans of the LEGO Speed Champions series over at casadebricks.com
With so many great cars, we started to run out of space to display them so built these stand options.
Simply print at 20% infill with 4 perimeters and then push the two pieces together. It will be tight pushing them together to aid in stability but with a little pressure they lock together nicely. No glue etc is required, it's just a friction fit.
Over the years the Speed Champions series have had a few different types of “chassis”. The newer ones frequently use an 8 stud wide approach. The older ones have a 6 stud wide chassis.
There's also some speed champion models that don't use a moulded chassis at all, so check your vehicle before you start printing.
Finally, it's also worth measuring the width between the slots on the smaller 6 stud cars. Some of them are different to 36.4mm (inner distance) that is modelled here.
If you enjoyed the model, head on over to our LEGO blog at casadebricks.com for a look around.
Edit 23-4-23: Now with 10 Stud Option for the new Ferrari 76914 set. I've not yet tested it, but let me know if it works for you in the comments.
The author marked this model as their own original creation.