It actually wouldn't be a sister or brother, I think more a Father or Mother.
This was the first SSR that had the "teeth" and was posted a long long time ago, probably close to 2 years ago or more. I think I was first to post about it, the link was from the paint shop where it was just getting finished painting. The reviews were very mixed, especially the Studebaker badging............
Here is one of the old posts -
An SSR with bite ............