Those huge 1970s luxury cars were VERY luxurious and plush. Compare a huge 70s era Town Car or Sedan De Ville to the “luxury” crap made today. They weren’t meant to handle like a sports car, they were meant to float down the road and be as roomy as your living room
They had to float down the road. Any hard jolt would unleash the noise of misaligned body panels, squeaky frames and rattling windows in the doors.
Yes they were big and we had to constantly feed them with gasoline which was hard considering a ten gallon limit and even-odd days rationing.