Supports?... where we're going, we don't need supports.
Oh LàLà! prepare your printer for this awesome model! it is designed to be printed in just one piece, the doors and wheels are functional and it even has a flux capacitor!
UPDATE: We added the individual parts for those who can experiment problems with their printers, now you have the option to print it separately and snap the wheels.
X: 132.81 mm
Y: 43.26 mm
Z: 52.00 mm
0.3 and 0.2 layer height worked, not tested yet in 0.1
No supports needed