I’ve got old and new stuff.
A lot of folks forget about how fussy the old stuff can be as far as cold start driveability and such.
Some company sells a suspension package for late 60’s muscle cars for around $35k. They are still easily outperformed by their modern brethren (Mustang, challenger, etc.)
People forget that the first mustang was a Falcon with a sexier body. There was a reason we called my friend’s 1969 Charger a led sled.