Fleetwood Cadillac History 1978

Fleetwood Cadillac Models & History 1978

The most noticeable difference in appearance between the Brougham and the less costly DeVille sedan lay in Brougham’s distinctively tapered pillar design between front and rear doors. Brougham also stopped itself with four-wheel disc brakes. New this year were the restyled grille and back bumper, plus a weight-saving aluminum hood. Front seats now had seatback pockets. Brushed chrome moldings held new wreath-and-crest ornamentation. The Elk Grain vinyl roof held opera lamps just behind the back doors. Color-coordinated wheel discs repeated the body color in the center. Door-pull handles were new, and the door armrest hold six-way power driver’s seat controls. Brougham interiors held individual reading lamps. The Florentine velour interior was offered in mulberry, light gray, black, light blue, dark green, yellow, or light beige. Leather interiors came in eleven colors.

Standard engine was the 425 cu. in. (7.0-liter) V-8. Oversized steel-belted radials rode match-mounted wheels. New standard equipment included electronic leveling control. Joining the option list were seven new interior colors, rear deck accent stripes, color-keyed bodyside moldings, and chrome accent moldings. Available chromed wire wheels showed the Cadillac insignia on a hexagonal center hub. An electronic-tuning stereo radio with digital readout was available with 8-track tape player. The familiar Astroroof was available too. Brougham d’Elegance added contoured pillow-styled seats trimmed in Florentine velour (in five Antique colors), with velour trim in doors, pull straps, and seatback assist straps. Medium Saddle leather was also available on the 50/50 Dual Comfort front seats. Plush pile carpeting reached up onto the lower doors, and covered front and rear floormats. A “Brougham d’Elegance” insignia was on the glove box door; another outside. Also included: three above-door passenger assist grips, accent stripes, and available turbine-vaned wheel discs.


Model No. Style Number Body Type Seating Factory Price Shipping Weight Production Total
6C B69 4-door Sedan 6 $12,292 4314 36,800


Feature Base engine Optional fuel injected engine Optional diesel engine
Type 90-degree, overhead valve V-8. Cast iron block and head
Displacement 425 cu. in. (7.0 liters) 350 cu. in. (5.7 liters)
Bore & stroke 4.082 x 4.06 in. 4.057 x 3.385 in.
Compression ratio 8.2:1 22.5:1
Brake horsepower 180 @ 4000 rpm 195 @ 3800 rpm 120 @ 3600 rpm
Torque 320 lbs.-ft. @ 2000 rpm 320 @ 2400 rpm 220 lbs.-ft. @ 1600 rpm
Main bearings Five
Valve lifters Hydraulic
Fuel supply 4 Bbl. carburetor electronic fuel injection Electronic fuel injection
VIN Code S T N


Feature Brougham
Wheelbase 121.5″
Overall length 221.2″
Height 56.7″
Width 76.4″
Front Tread 61.6″
Rear Tread 60.7″
Standard tires HR78 x 15-B wide WSW


Transmission Turbo Hydra-matic transmission standard on all models; column shift.
Gear ratios (1st) 2.48:1: (2nd) 1.48:1; (3rd) 1.00:1; (Rev) 2.07:1.
Brougham Standard axle ratio 2.28:1, with 3.08:1 available
Rear Axle Hypoid rear axle
Steering variable-ratio, power assisted
Front suspension independent coil spring, link-type stabilizer
Rear Suspension four-link drive, coil springs
Brougham Brakes four-wheel disc
Ignition HEI electronic ignition.
Fuel tank 25.3 gal.


Fuel-injected V-8 engine for Brougham $744
Heavy-duty cooling system $41
80-amp alternator $51
Engine block heater $20
California emission equipment $75
Limited slip differential $67
High altitude pkg. $33


Brougham d’Elegance cloth: $938
Brougham d’Elegance leather: $1270


Astroroof w/full vinyl roof for Brougham $995
Sunroof w/full vinyl roof for Brougham $795
Cruise control $122
Controlled-cycle wipers $32
Rear defogger, grid-type $94
Six-way Dual Comfort power passenger seat adjuster $118-$150
Power 50/50 seat recliner $116
Power 50/50 passenger seat recliner $210-$262
Tilt/telescope steering wheel $121
Automatic door locks $114
Illuminated entry system $59
Fuel monitor $29
Theft deterrent system $130
Trunk lid release and power pull-down $80
Twilight Sentinel $54
Guidematic headlamp control $62
Trumpet horn $21
Remote-control right mirror $34
Lighted thermometer on left mirror $27
Lighted vanity mirror, passenger $50
AM/FM stereo radio with digital display; $106
AM/FM stereo radio with digital display w/tape player $106
AM/FM stereo radio with digital display w/CB $281
AM/FM stereo radio with digital display w/tape and CB $427
Seek/scan AM/FM stereo radio with tape player and digital display for Brougham $225
Firemist paint $163
Front bumper reinforcement $9
Chrome accent molding for Brougham $85-$100
Accent stripes for Brougham $53
Door edge guards $11-$18
License frame each: $9
Leather seating area $295-$315
Carpeted rubber front floor mats $31-$34); rear: $15-$21
Trunk mat $12
Turbine-vaned wheel covers $54
Locking wire wheels $541-$595
Locking wire wheel covers $179-$233