Cadillac Eldorado Brougham was hand-built, limited edition car with every conceivable luxury feature as standard equipment to show that Caddy was the luxury car king.

Cadillac - Cadillac Eldorado Brougham was hand-built, limited edition car with every conceivable luxury feature as standard equipment to show that Caddy was the luxury car king. - Retro and Classics

Interesting Facts: The Brougham was more expensive and exclusive than a new Ferrari or Rolls-Royce Silver Cloud. Only 304 were sold for 1958 for a price in excess of $13,000! Imagine, they offered a choice of 44 interior trim combos and 15 paint colors for the 304 cars being built!!
More info if you are interested: https://www.throttlextreme.com/cadillac-eldorado-brougham-time-cars-art/

Cadillac Eldorado Brougham – A Time When Cars Were Art