[pgfpro]

The other day I was coming home from work and noticed the on-coming traffic's rooster tails from the water on the road.

Then all of sudden a Prius goes by and I noticed it had very small rooster tail. as in practically nothing? So I chalk it up as coincidence but then another Prius goes by with the same result. So now it has my interest. I keep a watch for another 40miles and sure enough every car with a aero design has a very small rooster tail.

I know this isn't scientific but it sure was interesting.