3D printed body parts? Anyone tried?

Well I've seen a company that prints large private boats many times longer than a car so size limitations are not an issue, it's just a matter of finding who and where. It looked pretty fast too, would certainly do a car part in good time. I have access to free printer use but have to pay for the plastic I use, but only good for parts 14 inches long or less. Hoping a big printer gets set up in NZ. One thing is it would cut out the normal huge postage I have to pay to get stuff from the US.