WORD!!
It was politics that killed Pontiac.
GM kept Buick and killed Pontiac because Buick does very well over in China. So the excitement brand for GM died and old fart stogomobile BUICK was kept to satisfy the Chinese Market! Most don't know that Buick over there has the same prestige as say Rolls here!
The real Pontiac brass at the end was pushing HARD for rear drive only stuff and a line that would compete in the euro sport market against Audi, BMW and Merc.
I was the one of the founders of the Pontiac Oakland Club in my State. At one time I was BIG time into REAL Pontiac muscle. Had a BUNCH of RA IV ,SD and 455 HO stuff at one time. I broke the right T -Top out of a 1977 TA one night back in the early 80's on a power shift when if bit hard on the shift and twisted the body LOL.
That particular car was running a built SD-455 and was specifically built to cruse long distance at 160 + MPH all day to run the real MT cannonball. The reason it twisted the body like that was it had 600+ ft LBS or torque and a 2:41 gear. She ran 13.70's with that gear and an auto trans with low slip low stall 13 inch converter in the 1/4. Had 11's in it easily with some gear and a loser converter.