The 1960s are arguably one of the high-water points in terms of American automotive design leadership. Evolving out of the ridiculous excess of the 1950s, they were pulling a full 180 and going for clean and minimalist (if not small) designs, key among them the Buick Riviera, Studebaker Avanti, Oldsmobile Toronado, and Lincoln Continental. In 1963, that revolution was just going public, and on an early 1960s Cadillac you can see it happening. Check out this 1963 Cadillac Sedan DeVille for sale in Houston, TX for $4000.