They were aimed at a conservative audience, little concerned with year-to-year changes and rode on a 149.8-inch wheelbase. The Fleetwood Limousine had a padded roof with landau irons, cost $9,960 and weighed 5,280 pounds; the Nine-Passenger Sedan cost $9,746. Cadillac built 455 Nine-Passenger sedans and 795 Fleetwood Limousines.

For 1966, the Cadillac Fleetwood 75 limousine and executive sedan received the same redesign that the rest of the Cadillac lineup received in 1965. Gone were all traces to the previous design’s 1959 origins, including the tail fins, tall roof, dog leg windshield pillars, and X-frame. Instead, the new Fleetwood 75 had a more rounded roof line and more flowing lines, and this basic body would continue with few changes through 1970. Padded roofs were still optional, with a landau iron and closed rear quarters. The nine-passenger sedan sold for $10,312 and the limousine for $10,521. Power was derived from a 429-cid, 340-hp V-8 motor.

The 1967 Fleetwood 75s received the same updates as the rest of the Cadillac lineup, with headlights angled forward, and a falling bodyline with a hipped rear fender by the C-pillar. Cadillac updated the 75s in 1968 to match the rest of the lineup and Fleetwood 75 buyers now had the choice of 21 colors including eight firemist shades. All Cadillac models received a massive new motor in 1968, which displaced 472 cid and generated 375 hp.

For 1969, Cadillac restyled the front of its cars with four horizontally displayed headlights and buttressed fenders. Taillights were now visible from the side, as well marker lights. The 75 limousine and nine-passenger sedan now had self-leveling suspension and automatic air conditioning. The wheelbase remained 149.8 inches long, but overall length rose to 245.3 inches. Prices at this point were $10,823 for the sedan and $10,961 for the limousine. The 1970 model year was the last for this generation of Fleetwood 75s. Both the sedan and limousine had two separate air-conditioning systems and the limousine offered five different cloths for the rear upholstery. The limousine was the most expensive Cadillac at $11,178.

Most Cadillac Fleetwood 75s saw commercial duty, and many of these models can still be found in funeral home service. Frequently, they have mostly been well maintained, and quite often they can be bought reasonably. Of course, as limousine and executive transport, the Fleetwood 75s are immensely large and commensurately difficult to take on the road. They certainly stand out in a crowd, however, and offer unmatched comfort and luxury for the price.