I drive a '84 G body.
I am sorry but there is a reason they don't build cars like that anymore. They were BAD cars.
Modern cars are MUCH safer, MUCH more efficient and MUCH MUCH MUCH Greener.
A modern "cheap" car like a Kia or Hyundai outperforms anything built in the 80's... even "super cars" of that era (other than top speed).
Reminiscing is dangerous. We only remember the good stuff.
'60s cars needed a valve job at 30-50,000 km. A motor was LUCKY to last 160,000km. It had a three speed trans (if you ordered the upgrade otherwise you got 2 speeds) that shifted mechanically, that had to be replaced after about 50,000k... but that's academic as the body rotted off in 5 years... and the thing got 16 miles to the CANADIAN GALLON of gas.
... but then Chysler offered a Imperial, that weighed three tons, with a
RECORD PLAYER. Spoiler: it didn't work very well.