I went to a few dealerships and took pictures of the deflectors on different vehicles. Only one salesman was even remotely interested in what I was doing, the rest lost interest when they realized I wasn't buying.
These are all on the front tires. No Prius or Insight was available.
I thought the Ford Focus was really interesting. Three deflectors that wrap around the tire!
Full width dam on the Ford Fiesta:
Doubles on the Honda CRZ:
I forget what cars these were, I think Toyotas and/or Subarus: