Cadillac Models & History 1991

Cadillac’s Brougham series again consisted of the Brougham sedan and special edition Brougham d’Elegance sedan (option code V4S).

Power was supplied by the revised 5.0-liter V8 with throttle body injection (TBI). The “new” 5.0-liter V-8 was rated at 170 horsepower, and featured roller valve lifters for less friction and cast iron exhaust manifolds con�toured for minimal flow resistance. Available previously only with the Coachbuilder Package, the 185-horsepower 5.7-liter V-8 with TBI was now a stand-alone Brougham engine option. Both en�gines were paired with the 4L60 Hydramatic four-speed automatic transmission with overdrive.

Final drive ratio was 3.08:1 (3.73:1 with Coachbuilder and Armor options).

Formerly optional, but now standard features of the Brougham were rear sail panel reading lamps, passenger seat power recliner and six-way power seat adjuster, and leather-trimmed steering wheel.

New standard features included electronic variable orifice steering system in which steering effort was reduced during low-speed driving and increased during high-speed maneuvers to improve stability, and a new ride package. This package consisted of deflected disc shock absorbers, new body mounts and high-rate front and rear springs.

Outside, the Brougham received clearcoat paint as stan�dard, with two new colors added (12 total): Victorian Red and Dark Antelope. Eleven vinyl top color choices were available.

Also new was the optional central door unlocking system includ�ed with the automatic door lock system.

Brougham’s stopping power was provided by the Bosch II anti-lock braking system.

Standard tires were self-sealing P225/75R15 Uniroyals that had a distinctive gold letter treatment.

An available trailer towing package gave the Brougham a towing capacity of 5000 pounds.

The d’Elegance sedan featured a specific trim design with multi-button tufted seats. In addition, the interior package included three overhead assist handles and illuminated driver/passenger vanity mirrors.

The d’Elegance again also featured Twilight Sentinel, power trunk pulldown, and specific exterior/interior ornamenta�tion.

I. D. NUMBERS

The 1991 Cadillac had a 17-symbol vehicle iden�tification number (VIN) stamped on a metal tag attached to the upper left surface of the cowl visible through the wind�shield.
The code was as follows:
The first digit “1,” represented the manufacturing country (United States)
The second, “G” represented General Motors.
The third, “6,” represented Ca�dillac
The fourth and fifth represented the car line/series, D/W=Broughom
Digit six represents the body style: 5=four-door sedan
Digit seven identities the restraint code: 1=active (manual) belts, 3=active (manual) belts w/driver’s side airbag, and 4=passive (automatic) belts.
The eighth digit identifies the engine: “E”=L03 5.0� V-8, “7”=LLO 5.7L V-8
A check digit follows.
The 10th digit represents the model year, “M” for 1991.
The eleventh digit represents the assembly plant.
The remaining six digits identify the produc�tion sequence number.

Series: DW5
Body/Style No.: W69
Body Type: 4-dr. sedan
Factory Price: $30225
Shipping Weight: 4282 lbs
Production Total: 27,231 (Includes Broughams equipped with d’Elegance option)

ENGINE

Feature	Standard	Optional (standard on Coachbuilders edition or Brougham w/towing package)
Type	90-degree overhead valve V-8	90-degree overhead valve V-8
Block	Cast iron block	Cast iron block
Cylinders	cast iron cylinder	cast iron cylinder
Heads	cast iron heads	cast iron heads
Displacement	305 cu. in. (5.0 liters)	350 cu. in. (5.7 liters)
Bore & Stroke	3.74 x 3.48 in.	4.00 x 3.48 in.
Compression ratio	9.3:1	9.8:1
Bhp	170 @ 4200 rpm	185 @ 3800 rpm
Torque	255 lb.-ft.@2400 rpm.	300 lb.-ft.@2400 rpm
Lifters	Roller hydrau�lic valve lifters	Roller hydrau�lic valve lifters
Injection	Throttle body fuel injection	Throttle body fuel injection

CHASSIS

Wheelbase	121.5 in.	3.086 m
Overali Length	221 in.	5.613 m
Height	57.4 in.	1458 mm
Width	76.5 in.	1943 mm
Front Tread	61.7 in.	1567 mm
RearTread	60.7 in.	1542 mm
Standard Tires	Michelin P225/75R15.

TECHNICAL

Transmission	THM 4L60 four-speed automatic with overdrive (in�cludes torque converter clutch).
Steering	power-assisted recirculating ball
Front Suspension	Independent with short/long arms, coil springs, direct acting shock absorbers and link-type stabilizer bar.
Rear Suspension	Four link, coil springs with automatic level control and direct acting shock absorbers and stabilizer bar.
Brakes	Power assisted front disc/rear drum w/Teves anti-lock braking system Brougham used Bosch Il ABS
Body Construction	Separate body on frame.
Fuel Tank	25.0 US gal.

OPTIONS

5.7-liter V-8	$250.	V92 Trailer Towing pkg.	$550.
Opt. Pkg. B	$325.	Opt. Pkg. C	$685
Opt Pkg. C (d’Elegance)	$360	Astroroof	$1,550
Coachbuilder Pkg.	($139 credit)	d’Elegance Cloth Int.	$l875.
d’Elegance Leather Int.	$2445	Gold Ornamentation Pkg.	$395
Leather Seating	$570	Livery Pkg	$299
Auto Day/Night Mirror	$110	Firemist Paint	$240
Lower Accent Firemist Paint	$50	CD Music System	$396
Full Vinyl Roof	$925	Locking Wire Wheel Discs	$445.
Wire Wheels	$1,000.