BTW, I remember the days BEFORE TITANIUM ~ back when Steve Tesich was still a bicycle race fan and not a successful screenwriter (He's the guy who did Breaking Away about our good friend Dave Blaze who sang Italian arias while racing).
They were talking about how great it was going to be to get lithium bike parts ~ even frames (then about $2000 ) which would allow them to beef up the braking systems.
It cost less than $2000 for room, board and tuition at a major state university back then ~ not like today.
You specifically mentioned two GM models, not a damned bicycle. Christ.