From engines, to wings, to roof racks
As Philip points out in the comments:
HW_works is a good dude. And he does some amazing design work in 3d! I have one of his steering racks (that I have yet to use), and just got the flat six porsche engine in as well. I can definitely recommend an IG follow! @hotwheelsworks
Another shapeways shop to check out is Roger Wheel co. () He makes some AMAZINGLY detailed 3d printed wheels.