Overall a solid design, excellent design for #d printing. A few things that could be improved: Some of the detail pieces could use with a 0.2mm nozzle (hence none on mine). Placement and orientation of the receiver board could be better if it was rotated 90 degrees so the power cable isn't tight against the wall, there is space to move it back a bit too. Be nice if the battery cable connector was a bit more accessible for charging. There are a few items that did better with CA glue (door panels, door magnets, deck railing, rear hitch) but no mention of using glue in the instructions. Now to figure out how to build a trailer for this....