No, I found them on thigyverse.
There are a bunch of those surprise eggs made all from one guy.
These are meant to test your printer and bring the printer to its limits.
The wheels and the back of the Truck need to be moveable after the print.
The Truck is printed in one piece. The egg is seperate but the truck needs to fit into it.
Also the egg shell can be opened and closed after printing. It is one part model aswell.
The eggs can be found here:
https://www.thingiverse.com/agepbiz/designs
Right now I try and test the A30 as good as possible to get the best results with PETG.
I also plan to do some videos around the A30. It is a quite good printer for the price.