We had a 73 New Yorker. Didn’t seat 20, but would seat 10 I bet.
We had one of those, too! It had a 440 Commando that would shift out of first gear @70 mph and I never did find the top end on that land yacht.
But I screwed up badly one evening when I was cutting doughnuts in the school parking lot with the stereo cranked and unbeknownst to me, Pop’s tool box was sitting in the cavernous trunk. I wasn’t home a couple days later when he went to retrieve said tool box, but Mom was and she said you could literally see steam coming out his ears. His tools were scattered everywhere...
I never got to drive that New Yorker again. A year later Pop had had a heart attack, became disabled and then traded it in on a new Datsun Sentra. He got $400 trade-in allowance on it. I cried a little that day...