Rarest A-Body Option?

Police speedo option 160 MPH (1976)
I've never seen a 160 mph speedo in any "A" Body , but I have seen the Certified-Calibration 120 mph speedo in 1976 Valiants ; "B" bodies and "C" bodies had the 140 speedo ( also Certified-Calibration ) ; and the new(er) Chargers / Magnums have Certified 160 speedos .

But , yes , any 1976 "A38" Valiant is rare ! A fellow FABO member has 2 of them. His screen name is ...
... A38Valiant :thumleft: