A very tough under rated car for sure and full of Torque too!
Back in HighSchool auto class,we used to get parts from the local GM dealership 5 minutes away,which happened to be Don McAuliffe Buick on Roosevelt Rd.
Back in April 1981,I remember a Red Stage 1 GS sitting on the used car lot,as we waited for the parts counter to free up.We asked if we could take it for a test drive,but the salesman who was as old as dirt,refused.Said we weren't experienced enough to drive it,so we flicked him off.
I think he was right.