In 1969 there were four models.
1) Barracuda - 225 & 318 (not sure if any had 273)
All trim and brake options available, and fastback, coupe and convertible
2) 340-s - 340. Just E55 engine on fender tag to identify. All trim options available, generally not well trim package optioned, HD suspension, 8-3/4, and dual exhaust standard. 4spd and auto available. Silver grille, silver trunk panel, Barracuda and 340-s fender emblems. Available fastback, couple and convertible. Numerically more rare than formula s 340s.
3) Formula S - 340, 383. A53 fender tag. All the HD stuff. 4spd or 727. Black grille details, black trunk panel with 's' medallion. Side stripe with engine callout on fender. Standard Barracuda fender emblem, unless V78 stripe delete, then it got the 340-s emblem or 383-s emblem as well on the fender. Available in fastback, coupe and convertible.
4) 'cuda - 340,383,440. A56 fender tag for 340 & 383, A13 for 440. All hd stuff available except 440 which only offered manual steering and Non-powered drum brakes. Twin scoops, hood stripes and blackout lower body stripe/paint. Decal callout on fenders, Barracuda emblem on fender. Available in fastback or coupe.
Grant