Cadillac Deville History 1990

Cadillac Deville Models & History 1990

The best-selling luxury automobile in America, the 1990 version of the deVille, was powered by a more powerful 4.5-liter V-8 engine. Its horsepower was increased from 155 to 190, while torque moved up from 240 to 245 lb.-ft. A new windshield wiper system with enhanced overall operation was adopted. Features that were previously optional that were now standard on the deVille consisted of

  • center front seat armrest with a flip-open storage area
  • door edge guards
  • manual driver and passenger seat recliners
  • a leather-trimmed steering wheel rim
  • a driver’s side supplemental inflatable restraint (S.I.R.) system.
 

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Cadillac Coupe deVille 1990

Five new exterior colors were offered:

  • slate gray
  • light auburn
  • dark auburn
  • medium slate gray
  • dark slate gray

A total of 15 exterior colors were available. Sable black was now offered as monotone. Replacing the academy gray lower accent molding was medium slate gray. A long list of advances and improvements highlighted the 1990 deVille interior. Two new Primavera cloth colors, slate gray and dark auburn, were introduced. A total of five colors were offered. These two colors were also available in the Sierra grain leather trim, joining six carryover colors from 1989.

 

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Cadillac Coupe deVille 1990

New standard driver and vanity mirrors with mirror covers were also installed. Also standard was a front seat “clamshell” armrest with a deeper storage area to accommodate both compact discs and cassette tapes. A removable coin holder was located on the driver’s side inside area of the armrest. The cup holder now had a new lever feature. The front and rear floor mats were rubber-backed and available with optional retention needles. A new front seatback buckle anchor (on track) was used to provide increased convenience in locating the buckle from any position. The use of the S.I.R. resulted in the elimination of the steering wheel telescoping function.

 

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Cadillac Coupe deVille 1990

Standard on the de Ville was an upgraded acoustic package. A pass-key system that included a passive anti-theft system that disengaged the starter, fuel pump and ECM was also standard. The Express-Open Webasto Astroroof was improved to allow the roof window to open with a single one-second touch on the switch. The roof window could be stopped at any position by tapping the switch a second time.

 

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Cadillac Coupe deVille 1990

Changes in Cadillac’s engine for 1990 consisted of the use of a dual level intake manifold, lightweight pistons, larger valve cylinder heads, new magnesium valve covers and new BCM software. The optional cast aluminum lace wheels offered for the de Ville featured window areas of either silver or gray depending on the car’s lower accent molding color. The center cap display had a gray background. A chrome wreath and crest were used. The deVille’s overall ride characteristics were enhanced by improved vehicle structure. For Sedan de Villes intended for fleet use, a new coachbuilder and heavy-duty livery package was offered.

STYLE

Model Model Number Style Number Body Type Factory Price Shipping Weight Production Total
DeVille 6C D47 2-door Coupe $26,960 3486 lb 2438
DeVille 6C D69 4-door Sedan $27,540 3466 lb 131,717

CHASSIS

Feature Coupe deVille Sedan deVille
Wheelbase 110.8 in. 113.8 in.
Overall Length 202.7 in. 205.6 in.
Height 54.9 in. 55.2 in.
Width 71.7 in. 71.7 in.
Front Tread 60.3 in. 60.3 in.
Rear Tread 59.8 in. 59.8 in.
Standard Tires Michelin P205/70R15 P205/70R15

ENGINE

Type 90-degree, overhead valve, V-8, aluminum block and cast iron cylinder liners, cast iron cylinder heads
Displacement 273 cu. in. (4.5 liters)
Bore & Stroke 3.62 in. x 3.31 in.
Compression ratio 9.5:1
Brake horsepower 180 @ 4300 rpm
Torque 240 lb.-ft. @ 3000 rpm
Main Bearings Five
Valve lifters Roller hydraulic
Fuel supply Sequential port fuel injection

DRIVETRAIN

Transmission THM 440-T4 automatic four-speed (includes overdrive and viscous converter clutch)
Steering Power-assisted rack and pinion
Steering Ratio 18.6:1
Front suspension Independent MacPherson strut with coil springs, strut-type shock absorbers and stabilizer bar
Rear suspension Fully independent with coil springs. Automatic level control and strut type superlift shock absorbers
Brakes Power assisted front disc and rear drum with optional Teves ABS
Body construction integral body-frame
Fuel tank 18.0 gal.

OPTION PACKAGES

De Ville Option Package B, includes

  • front and rear carpeted floor mats
  • six-way power passenger seat
  • front and rear seat adjuster
  • trunk mat
$356
De Ville Option Package C, includes

  • front and rear carpeted floor mats
  • six-way power passenger seat
  • front and rear seat adjuster
  • trunk mat
  • illuminated entry system
  • illuminated vanity mirrors
  • trunk lid power pull down
  • Twilight Sentinel
$771
De Ville Option Package D, includes

  • front and rear carpeted floor mats
  • six-way power passenger seat
  • front and rear seat adjuster
  • trunk mat
  • illuminated entry system
  • illuminated vanity mirrors
  • trunk lid power pull down
  • Twilight Sentinel
  • remote release fuel filler door
  • automatic day/night mirror
  • electrochromic trumpet horn
$961
De Ville Option Package E, includes

  • front and rear carpeted floor mats
  • six-way power passenger seat
  • front and rear seat adjuster
  • trunk mat
  • illuminated entry system
  • illuminated vanity mirrors
  • trunk lid power pull down
  • Twilight Sentinel
  • remote release fuel filler door
  • automatic day/night mirror
  • electrochromic trumpet horn
  • automatic door locks
$1146

OPTIONS

Item Coupe deVille Sedan deVille
Anti-lock braking $925 $925
touring suspension $155 $155
engine block heater $45 $45
Accent striping $75 $75
anti-lock braking system $925 $925
Astroroof $1355 $1355
California emissions and testing $100 $100
rear window defogger $195 $195
gold ornamentation package $395 $395
digital instrument cluster $250 $250
leather seating area $560 $560
two-position driver’s side memory seat N/A N/A
automatic day/night mirror N/A N/A
firemist paint $240 $240
monotone lower accent color n/c n/c
base radio with Delco/Bose sound system $576 $576
Delco-Bose sound system with compact disc music system $872 $872
power driver seat recliner N/A N/A
power passenger seat N/A N/A
formal cabriolet roof $825 N/A
full padded vinyl roof N/A $825
vinyl roof delete N/A N/A
theft deterrent system $225 $225
wire locking wheel discs $365 $365
cast aluminum lace wheels $480 $480
ElectriClear windshield $250 $250