I have a 2015 Prius 3, with stock wheels and hubcaps, wanted something different, found a set of upgraded rims and tires off of a 2013 Subaru Legasy, 5x100. After researcing I thought I would need some 3mm shims as the wheels were supposed to hit on the brake caliper, as it turned out there was no rubbing at all, the only thing I needed was the correct lugnuts, and they look great.
If it worked off a 2013 then that suggests that any Legacy or Outback rim 1996-2013 could potentially work. IIRC, Subaru changed that platform to a 5x114 pattern for the 2014 model year.
I believe your correct. I pulled a Suby compact spare from a junk yard, when I was looking for a rolling spare. The clerk was nice enough to let me take it out to my car to confirm bolt pattern. It was probably 5x114; because it was off...
You should still get a set of 56.1mm to 54.1mm hubcentric rings to make sure that the wheels are properly centered on the hubs. I'm running old Subaru Imprezza WRX rims on our 2011 Prius. 5 x 100, 16 inches by 6.5 wide. Posted via the PriusChat mobile app.
I should've kept these 17 inch 5x100 wheels off an old Subaru legacy GT, but I only have these pictures of the test fitting I did on my 2014 Corolla before removing the old tires. Sold them without ever mounting new tires on them. They would have fit the Prius as well. Posted via the PriusChat mobile app.