Anyone Old Enough to Have Witnessed "Parade of Progress" ('53-'56)

In 1980 at the Buick dealer I worked at, I got to drive a customers mint 1970 GS Stage 1 that was in for a new short block. I remember thinking my 68 roadrunner 383 wouldnt stand a chance.
That buick had 72 inches on your 'runner
If you ask the Japanese, that's and entire engine