These are RAYS TE37 styled wheels for any Hot Wheels Car. They are aimed toward Customizers due to axled not bing included.
NOTE: The wheels are 6mm wide (7 with inner peg), which is between the two HW Wheel Thicknesses exactly. They are meant to give a better fitment and not wobble around on the axles. Most Hot Wheels cars have a sunken wheel look, the width of these should put them just outside of the fenders.
I don't have a 3d Printer at home yet, so I haven't tested it. I have one on it's way from shapeways now and will update with images when it arives. I carefully took all the measurements with a Micrometer but will adjust the model when I get mine.