Well that's something I'm a bit confused about, Wikipedia lists the 1981 as an A-Body car.
Is that incorrect?
I found this thread here -- https://gbodyforum.com/threads/why-is-it-called-a-g-body.24215/
Cutlass, Monte Carlo, Regal (G.N.s), Grand Prix, El Camino, and Caballero from 78 to 88 are...