For what is is worth-my 64 Valiant (same as a Barracuda) has a floor shift and bench seat. And I have seen Roadrunners (I know-'B' body)with floor shift/bench seats.
Lynn
yea I have seen the valiant's with bench seats but the barracudas 64 65 66 all came with bucket seats standard it would be interesting to find out if a bench seat could be or ever was special ordered