Were early A bodies built better than the 67-76 models?

I think the early As are built better, I believe all manufacturer's cars were built cheaper as the years went on.
I think that may be right.
I wonder if they build stuff then learn new ways to build it lighter or easier.
Our new Challenger (Actually a 2015 model) has some thin and flimsy feeling sheet metal. The grille looks nice but up close, it also feels flimsy.
Look at the first generation 66-67 Chargers VS the 68-70. I have a '70 model but looking at the 66-67 cars, they had a fancier interior, more expensive gauges, more stainless trim, a more complicated grille and headlight assembly, etc.