I bought a Prius at the beginning of February, and after a month and a half have finally gotten around to some aeromodding. Last weekend, I swapped the stock springs for Tein H-Tech, and this weekend I've installed some smooth wheel covers:
I pulled the moon caps from the Civic before it got hauled off, and was disappointed to find they didn't fit the Prius' aluminum wheels (even though they're designed to use wheelcovers). So I had to go the pizza pan route, which didn't turn out too badly after all.
The patients ready for surgery:
I ended up having to redo them and move the bolts toward the rim another 1 1/2" to sit between the split spokes. Oops!
Less wheel gap than factory (Tein says it's around a 1.4" drop):
I also removed the rear windshield wiper while I was at it; I don't want anything disrupting the airflow over the back of the car (which is why that antenna will be going away too):
And lastly, for now, a temporary grill block:
I'll update this thread as I get more done.