Are all models of the Prius delivered with the HSD emblem on the rear trunk lid?
I fell in with with a three Prius convoy coming back from Portland last night. We were happily moving North on I-5 at about 60 miles per hour, and I was amazed at how speed compatible the TCH was to the rest of the convoy. When they pemitted acceleration on a down grade, I found my own acceleration rate totally compatible with no need to brake in spite of the heavier TCH. Similiar, on upgrades it seemed like roughly equivalent assist demands were taking place as no-one was doing anything different.
My question above comes because I noticed that one Prius was different. It had no HSD emblem. Instead, on the right rear it had a "Prius" badge. On the left side was a two word badge -- and the second word was "Hybrid", but I never got close enough to read the top one.

We rolled on in a right lane convoy for about 60 miles until I had to exit I-5 at the Tenino exit. It was lots of fun.