Mincemeat
Doomsday's Neighbour
I got that feeling with the Sorthak. The first time you encounter one it's a bit of a shock, but not overwhelming. It doesn't give you the sense that one of these could have destroyed 18 fighters.
The strange thing I find about the Sorthak is the limited field of fire from its quad meson rear turret. It's very easy to avoid but quite deadly if you don't.