Eldorado Cadillac History 1966

Eldorado Cadillac Models & History 1966

1966 Cadillac Eldorado

Littlechange was evident for 1966, the final season for the rear-drive Eldorado. This was a record sales year for Cadillac, its fifth in a row, and 1966 Eldorado production was exceeded only by the 1955 total. And that’s as it should be, for a car with such a great heritage should end on a note of triumph.

1966 Cadillac Eldorado

But by now, Cadillac had decided it was again time for something truly new. It appeared the following year in the form of the first front-wheel-drive Eldorado, which would set a new standard for personal-luxury transportation. This car would only strengthen Cadillac’s dominance in the upper end of the market. In first-year sales alone it exceeded its predecessor’s combined total for the previous 10.

1966 Cadillac Eldorado

Nevertheless, this success wouldn’t have been possible had it not been for the memorable Eldorados of the Fifties and early Sixties. With the best of everything Cadillac had to offer in those years, they left an indelible impression in the minds and hearts of owners and would-be owners everywhere, and you can’t ask much more than that.

Fleetwood type trim was seen again on the Eldorado. Equipment additions included white sidewall tires and a six-way power front bench seat. It was to be the last season that conventional engineering characterized this model.


Model No. Style No. Body Type Seat Factory Price Shipping Weight Production Total
66-684 68567-E

2-door Eldorado Convertible

6 $6631 2045 kg 2,250


Type V-8 Overhead valves
Block Cast iron block
Displacement 7 Liter
Bore and stroke 104.9mm x 101.6mm
Compression ratio 10.5:1
Brake horsepower 340 hp @ 4600 rpm
Power 255 kW @ 4600 rpm
Bearings Five main bearings
Valve Lifters Hydraulic valve lifters
Carburetor Rochester four-barrel type, model 7026030


Wheelbase 3289mm
Overall Length 6210mm
Front Tread 1588mm
Rear Tread 1588mm
Automatic level control standard where indicated in text
A new engine mounting system and patented quiet exhaust were used
Tires 9.00 x 15


Air conditioner $495
Controlled differential $54
Cruise Control $97
Door guards on two-door models $4
Soft Ray tinted glass $52
Delete-option heater and defroster $97 credit
License plate frame $6
Power door locks $46
Power headlight control $51
Power vent window regulator option $73
Radio with rear speaker $165
Radio with rear speaker and remote control $246
AM/FM radio $191
The new seat warmer $60.20
Rear seat belts $18
Head rests $40.15
Front seat belt delete-option $17 credit
Adjustable steering wheel $91
Twilight Sentinel standard
Five white sidewall tires 9.00 x 15 size with four-ply construction standard