The datsun model has extraneous interior details, if you try to slice it normally the top shell will be only a mm thick and the overhangs won't have a chance.
^Just make sure to turn this off afterwards
This settings will make the outer shell a solid so that there will be infill and such and the model will print just fine.
Supports are required for parts of the front and rear bumper
Then print 4 of the wheel.stl model and glue them on
Also the model pictured is 50% size and about 100mm long, the file is around 200mm long
I know this one isn't a print in place with moving wheels, I might eventually make it into one but the shell's gonna cause some issues
Original files found at: https://3dwarehouse.sketchup.com/model/uf1eed14c-061e-4a0b-a6bf-7f13d1ed8daa/Datsun-240Z?hl=en
Category: Models