Vintage Review: 1968 Cadillac Sedan De Ville: Smooth, Powerful, But “Not A Superior Investment”

Right side view of a Caribe Aqua 1968 Cadillac Hardtop Sedan de Ville against a red wall

In 1968, the Cadillac Sedan de Ville faced one of its toughest critics: Consumers Union, publisher of Consumer Reports, which normally didn’t rate luxury cars at all. They came away impressed in some important areas, but they found the Cadillac “something of a disappointment” considering its lofty price, and they disputed the conventional wisdom that its resale value made it an above-average automotive investment.

"Sedan de Ville" lettering on an aqua-colored car
1968 Cadillac Hardtop Sedan de Ville in Caribe Aqua / Bonhams

Consumer Reports has long gotten a bad rap from auto enthusiasts. The mission of Consumers Union (CU), the parent organization, is to provide a rational, even scientific counterpoint to the endless hype of advertising and marketing spin. Thus, its new car evaluations have usually prioritized functionality, safety, and cost of ownership over power, prestige, and sex appeal, which enthusiasts tend to read as scolding nannyism. In the ’60s and ’70s, CU often harshly judged or simply ignored the sporty specialty models the car magazines loved, and seldom issued detailed ratings for high-end luxury models beyond a few passing critical remarks.

Consumer Reports, April 1968, page 214, first page of Cadillac Sedan de Ville review

Closeup of the left headlights and grille of a 1968 Cadillac
1968 Cadillac Hardtop Sedan de Ville in Caribe Aqua / Bonhams

So, why was CU testing a new Cadillac De Ville for the first time in five years? They explained:

Although the high price of a Cadillac puts it out of most people’s reach, CU cannot ignore the car entirely. For one thing, the manufacturer’s boast that the Cadillac is “the standard of the world” demands the scrutiny of a testing organization: If Cadillac is indeed a yardstick against which to measure the performance of other cars. CU’s testers should know about it. For another thing, the luxury of Cadillac ownership extends beyond the realm of sheiks, undertakers and corporation presidents. With 200,000 sales a year, Cadillac ranks 11th among U.S. makes, not only way ahead of its price peers, Lincoln and Imperial, but also ahead of the lower-priced Chrysler. Finally, there is a question of economics. If you have the initial capital, is a Cadillac a superior “investment”— will it depreciate less than other cars?

Left front 3q view of a 1968 Cadillac four-door hardtop
1968 Cadillac Hardtop Sedan de Ville in Caribe Aqua with a black vinyl roof / Bonhams

I’ve noticed over the years that Cadillac depreciation has become the stuff of legends, spawning the popular belief that its high resale value would offset the higher initial price of a Cadillac relative to upper-middle-class models like the Oldsmobile Ninety-Eight or Buick Electra 225. CU pointed out that this was only true in a very limited sense:

Cadillacs do not justify themselves economically as superior cars in the trade-in market unless you trade them in every year [my emphasis]; then, overlooking the extra initial outlay and its interest-earning potential, you might pay no more for each new car than for a make ordinarily priced at $2500 less than a Cadillac. But if you bought a new car every two or three years, you would have to lay out considerably more cash each time than you would for even a medium-priced car. In short, dollar depreciation is larger than average for a Cadillac more than one year old. [My emphasis.]

I think the relatively low initial depreciation was due to high demand for new Cadillacs driving up the prices of late-model used ones. After a year, the value of a used Cadillac as a percentage of its initial price quickly fell more in line with other high-end cars. The following table shows some comparative Kelly Blue Book wholesale (trade-in) values for Cadillac, Buick, and Oldsmobile four-door hardtops. (List prices include air conditioning and AM radio.)

ModelList PriceTrade-In Value,
After 1 Year
% Retained
Value
Total Dollar
Depreciation
Trade-In Value,
After 2 Years
% Retained
Value
Total Dollar
Depreciation
1968 Cadillac Sedan de Ville 4HT$6,463$4,20065.0%$2,263$3,25050.3%$3,213
1968 Buick Electra 225 Custom 4HT$5,139$3,02558.9%$2,114$2,35045.7%$2,789
1968 Oldsmobile Ninety-Eight 4HT$4,944$2,86057.8%$2,084$2,35047.5%$2,594
1968 Lincoln Continental 4SD$6,634$3,70055.8%$2,934$2,90043.7%$3,734
1968 Imperial Crown 4HT$6,774$3,55052.4%$3,224$2,50036.9%$4,274

After two years, the De Ville would still be worth more than an Electra 225 or Ninety-Eight, but it actually depreciated considerably more in dollars than either (albeit a good deal less than a Lincoln or Imperial). To put it another way, the two-year depreciation on a 1968 Sedan de Ville was close to the average transaction price of all new cars sold in the U.S. at the time! As CU remarked, “Buyers of Cadillacs must face the unyielding fact that they are very expensive cars,” and that included depreciation as well as everything else. So much for the legend.

Left side view of a 1968 Cadillac four-door hardtop
1968 Cadillac Hardtop Sedan de Ville in Caribe Aqua with a black vinyl roof / Bonhams

In keeping with their usual practice, CU bought a new Sedan de Ville from a regular dealer, rather than asking for one from a manufacturer test fleet. The sticker price, with automatic climate control, power seat, and other extras, came to $7,016, although they negotiated a final price of $6,100 (a relative worth of about $62,500 in 2025 dollars), “indicating that Cadillacs, too, can be discounted to customers.” Still, $6,100 was still quite a lot of money in 1968, and given the price, CU was disappointed. “Although in some respects it did outperform cars for which you’d pay from $2500 to $3500 less,” they said, “nothing about the car required us to raise our test standards higher than those by which we judge other cars.”

Right side of a 1968 Cadillac four-door hardtop with the side windows down and both doors open
1968 Cadillac Hardtop Sedan de Ville with Decor cloth and leather upholstery in Dark Aqua / Bonhams

So, what did they like about it?

As expected, passenger accommodations were more luxurious than those of medium-priced full-sized sedans. Seating comfort up front was judged solidly good. Even the center of the front bench provided a fairly decent place to sit; a low transmission hump on the floor ahead minimized the usual loss of leg room there, and the middle seat itself was well cushioned. In back, fore-and-aft roominess exceeded the average for full-sized cars and gave ample knee room. But because the center of the rear seat was not so hospitably cushioned, rear seat comfort was downrated one notch, to fair-to-good. Ease of access to the front and rear compartments was judged satisfactory.

Right side of the dashboard and front seat of a 1968 Cadillac
1968 Cadillac Hardtop Sedan de Ville with Decor cloth and leather upholstery in Dark Aqua / Bonhams

Consumer Reports, April 1968, page 215, second page of Cadillac Sedan de Ville review

(These pages are from microfilm, so the B&W photos were pretty hopeless, but the pictures at the bottom are explained by the caption: “The Cadillac’s left-front brake tended to lock in CU’s brake tests, making the tire skid. No serious problem—but hard on the tire (see right).”)

Front seat of a 1968 Cadillac four-door hardtop, seen from the left
1968 Cadillac Hardtop Sedan de Ville with Decor cloth and leather upholstery in Dark Aqua and power seat / Bonhams

CU found that the De Ville rode quite well when lightly laden:

Above all else we expected a Cadillac to ride quietly and well. The car tested generally fulfilled that hope. It came through the lightly loaded (three occupants) ride test with a rating of very good. A car could have ranked slightly higher than that and still have remained inside the CU test parameters. But the Cadillac’s ride was the best we have ever experienced in a lightly loaded car. While passengers would have been aware of small motions, the sensation would rarely have been one of discomfort. Large undulations in the road surface produced a slow floating motion. Only certain large bumps on our test circuit disturbed the poise of the car, and then only for an instant. Even over the most irregular road surfaces, our Cadillac test car did not transmit any bothersome motion to the driver or to passengers.

Back seat of a 1968 Cadillac four-door hardtop with the center armrest folded down
1968 Cadillac Hardtop Sedan de Ville with Decor cloth and leather upholstery in Dark Aqua / Bonhams

They were not so pleased with how their Cadillac behaved when fully laden. One of the usual arguments for buying a full-size car over an intermediate or compact sedan was greater interior space, but if you used all that space, the limitations of the soft suspension quickly became apparent:

When the Cadillac was loaded to the manufacturer’s claimed carrying capacity (six people plus 200 pounds of luggage, the riding qualities deteriorated. The car did not rest on its rear suspension bumpers, as so many other cars have done when fully loaded, but during the ride test the Cadillac bottomed at the rear in snappy fashion. The more severe portions of the test circuit then caused noticeable distress. Over the largest test bump, such underbody parts as the front crossmember, the muffler and the fuel tank hit the road surface hard enough to cause scrapes. All in all, the ride at full load was judged only fair. In that respect, we found the Cadillac to be actually inferior to the 1968 Ford Galaxie 500 and Dodge Dart sedans.

Right rear 3q view of a 1968 Cadillac four-door hardtop
1968 Cadillac Hardtop Sedan de Ville in Caribe Aqua with a black vinyl roof / Bonhams

Cadillac offered automatic level control across the line in 1968, for $78.95 extra. I’m assuming the CU test car didn’t have it; it might have helped.

AM radio in a 1968 Cadillac
1968 Cadillac Hardtop Sedan de Ville with Dark Aqua interior and pushbutton AM radio / Bonhams

As long as the suspension wasn’t bottoming, the interior was impressively quiet:

Throughout the ride test, the Cadillac remained quiet. With the windows rolled up, we could detect little noise from wind, road surface or the mechanical components of the car. The combination of comfortable seating, well-controlled ride and low noise level makes the Cadillac an excellent car for long trips, so long as the car is not fully loaded.

They also found the automatic climate control (a $515.75 option specified by 95.9 percent of buyers in 1968) effective and easy to use, although it “sometimes went haywire.”

Left front 3q view of a 1968 Cadillac four-door hardtop
1968 Cadillac Hardtop Sedan de Ville in Caribe Aqua with a black vinyl roof / Bonhams

It won’t surprise anyone to hear that they found Cadillac’s high-speed handling mediocre, succumbing to heavy understeer and “considerable moaning, scrubbing, and rolling-under of tires.” Their testers found the De Ville could also get its tail out if they didn’t maintain a consistent throttle position through a hard turn.

Dashboard and steering wheel of a 1968 Cadillac
1968 Cadillac Hardtop Sedan de Ville with Decor cloth and leather upholstery in Dark Aqua / Bonhams

Their testers had mixed feelings about the variable-ratio power steering. It was quick enough to make for easier maneuvering in town, but they found the lack of road feel made it “difficult to estimate just how far the steering wheel would have to be turned in order to control the car accurately in a high-speed turn.”

Consumer Reports, April 1968, page 216, final page of Cadillac Sedan de Ville review

Engine in a 1968 Cadillac
Cadillac 472 cid engine, new this year, was rated at 375 gross hp and 525 lb-ft of torque / Bonhams

1968 was the first year for the new 472 cid (7,734 cc) Cadillac V-8, which provided excellent all-around performance. “It accelerated this 2½-ton machine as fast as any of our [1968] test sedans, and it provided more potent passing ability than most cars,” they said. CU recorded 0 to 60 mph in 10 seconds flat, and the quarter mile in 17.5 seconds at 84 mph. (Keep in mind this was Consumer Reports, not Hi-Performance Cars or Hot Rod!) They were also pleased with the powertrain’s manners, noting, “The quiet, unobtrusive way in which the Cadillac unleashed its power was the most impressive part of its performance.”

Closeup of the words "Cadillac 472" on the air cleaner of a 1968 Cadillac engine
New 472 cid engine was quite thirsty except in steady-state cruising / Bonhams

The downside, predictably, was very heavy thirst. “The constant-speed results were not so bad, but in traffic the mileage dropped sharply,” CU warned. “We would expect gas mileage in normal use to be about 7 to 15 miles per gallon.”

Right front wheel and whitewall tire on a 1968 Cadillac
Standard 1968 Cadillac brakes were big 12-inch drums, but they were overmatched by the 5,000 lb curb weight / Bonhams

CU’s biggest performance objection to the Cadillac was the limitations of its brakes. Front discs were newly optional on the full-size cars in 1968, for an extra $105.25, but the CU car had the standard drums. “We rated them only fair overall,” they wrote. “On the plus side, fade resistance was very good and recovery from fade was quick. On the negative side, brake-pedal effort was too low, and … it was difficult to make a moderately hard stop without skidding the wheels.” They questioned why front discs aren’t standard. (Both Lincoln and Imperial offered standard front disc brakes by this time.)

Right rear taillight of a 1968 Cadillac, with "Sedan de Ville" badge
1968 Cadillac Hardtop Sedan de Ville in Caribe Aqua / Bonhams

This was also the first year of the new federal safety standards, and CU found the Cadillac’s cabin generally well-designed to minimize injury. However, they were annoyed that “the front-fender tips, grille nose and rear-fender tips are pointed hostilely at pedestrians.”

Trunk compartment of a 1968 Cadillac
Usable luggage capacity of a 1968 Sedan de Ville was 16.5 cu. ft. / Bonhams

Their car — which, mentioned earlier, was a typical showroom example, not a press car — had better-than-average assembly quality, but that still fell several steps short of “outstanding”:

The Cadillac was not delivered in defect-free condition, though it was in better shape than most other cars in this year’s tests. Most of the Cadillac’s 21 defects were relatively minor: poor trim fits, water leaks and mechanical maladjustments. But the car did have one nasty problem. Every now and then it simply refused to start. No cause had been found at this writing, though we suspect the trouble was unrelated to the exhaust-emission-control system. Also, the air-conditioner’s automatic-temperature control system sometimes went haywire. Other little details of workmanship bespoke carelessness unbecoming to any new car, let alone one purporting to set a quality standard.

When this review was published, it was too soon for CU to weigh in on the repair record of the 1968 models, but the following year’s summary rated the 1968 C-body Cadillac better than average. Its reliability wasn’t exceptional in most areas, but there were no glaring weaknesses, which brought up its weighted average. However, elsewhere in the text of this article, CU warned that for parts or body repairs not covered by warranty, a Cadillac tended to be costlier to fix than other marques, even though it didn’t require any special or unusual maintenance.

Right front 3q view of a 1968 Cadillac four-door hardtop
1968 Cadillac Hardtop Sedan de Ville in Caribe Aqua with a black vinyl roof / Bonhams

They concluded:

Summing up, the Cadillac offers a smooth, quiet ride, good accommodations, effortless performance and adequate handling—but barely adequate power drum brakes. That combination of qualities does not seem to merit the extra price over and above that of other full-sized automobiles. Nor can you expect resale value high enough to offset the high initial purchase price. There remains the matter of prestige value. That each man must judge for himself.

This echoed CU’s sentiments about medium-priced cars like full-size Buicks or Oldsmobiles: The CU automotive testers didn’t necessarily DISLIKE such models or think they were bad cars, but CU regularly concluded that the more expensive cars didn’t offer enough benefits to justify their higher prices, except in subjective areas like styling and badge cachet, which CU didn’t presume to judge.

Left rear 3q view of a 1968 Cadillac four-door hardtop
1968 Cadillac Hardtop Sedan de Ville in Caribe Aqua with a black vinyl roof / Bonhams

Of course, many Americans of this era had no difficulty weighing the prestige of the Cadillac nameplate, As CU noted at the outset, sales were robust: a record 230,003 for the model year, 164,472 of those the De Ville, including 72,662 Sedan de Ville four-door hardtops.

 

Related Reading

1968 Cadillac de Ville Convertible: Casting A Long Shadow (by Ed Stembridge)

1968 And 1969 Cadillac Coupe De Ville: Were These The Tipping Point For Cadillac Quality And Style? (by me)

Curbside Classic: 1968 Cadillac Fleetwood Sixty Special Brougham – Sweet Dreams Are Made Of This (by Jason Shafer)