I was confused by the 'with and without the caps part, so I looked here:
https://www.youtube.com/results?sear...la+wheel+18%22
My friends lost a hubcap on their Prius and it turns out there is a black powdered coated ten-spoke underneath. I suggested they take the other three off, but they won't do that (or replace the missing one
)
If you have the performance brakes your options are limited, but an 18" wheel and high profile tires makes some sense.