G3GM 1973 to 1977 A-bodys. Chevelles, Monte Carlos, El Caminos, Laguna, 442, Cutlass, Malibu, GTO, LeMans, Century, Regal, Grand Am, Grand Prix, Sprint, Gran Sport, Can Am, Hurst-olds, and other 73-77 A-bodies
Willing to bet that's a very solid car being that it's from Montana. Interior looks awesome! I don't know what the Cutlass "Edge" implies...but, I believe the chrome mirrors, stainless targa band and argent colored sport wheels were marketed as the Y76 option.