Cadillac Deville Models & History 1998

  • The DeVille, d�Elegance and Concours sedans again comprised the series.
  • The DeVille and d’Elegance used the 275-horsepower version of the Northstar 4.6-liter V-8 for power while the Concours featured the 300-horse Northstar.
  • Both versions of the engine were coupled to the 4T80-E electronically controlled four-speed automatic transmission with viscous converter clutch.
  • The StabiliTrak stability control system was already standard equipment on the Concours and offered on the DeVille and d�Elegance as part of a safety/security option package that also included an electronic compass/mirror, audible theft deterrent system and programmable garage door opener.
  • The DeVille series offered four new exterior colors for 1998:
    • Baltic Blue
    • Gold Firemist
    • Moonstone
    • Crimson Pearl
  • Inside, two new interior color choices were available:
    • Camel (available only in leather)
    • Pewter (available in cloth or leather in the DeVille and leather only in d�Elegance and Concours)
  • Additionally, the series’ personalization feature added two new locking modes to the three that already existed:
    • all doors lock when shifting out of park and only the driver’s door unlocks when the key is turned off.
    • all doors lock when shifting out of park and unlock when the key is turned off
  • Also, the remote keyless entry fob added a feature: when the lock button was pressed, the horn sounded to verify that the doors were locked.
  • All three sedans now came with an airbag warning label affixed to the passenger visor and each received a revised electrochromic day/night inside rearview mirror.
  • The radio installed in DeVille series sedans also received a mute button and Theftlock, while radio data system (PDS) and weather band were offered as part of the optional Active Audio sound system.
  • PDS allowed broad-casters to deliver a 1200-bits-per-second data stream along with audio content.
  • The Concours’ standard radio also received an in-dash, single-slot CD player.
  • Unique new standard features to the Concours included restyled 16-inch cast aluminum wheels as well as the next generation of Magnasteer that reacted to lateral acceleration as well as speed.
  • When the cornering rate was up, as sensed by an on-board lateral accelerometer, steering effort was automatically increased to enhance the driver’s feel of the road.
  • Both the d�Elegance and Concours added heated front seats to their list of standard fare.
  • The OnStar in-vehicle communications system was again offered to DeVille/ d�Elegance /Concours buyers as a dealer-installed option.
Model Number Style Number Body Type Seating Factory Price Shipping Weight Production Total
KD5 D69 4-door Sedan 6 37695 4063 111,030
KE5 E69 4-door d’Elegance Sedan 6 41295 4052
KF5 F69 4-door Concours Sedan 6 42295 4012


Feature De Ville Concours
Type 90-degree dual overhead cam Northstar V-8
Block Aluminum block with cast iron cylinder liners
Heads aluminum
Displacement 279 cu. in. (4.6 liters)
Bore & Stroke 3.66 x 3.31 in.
Compression ratio 10.3:1
Brake horsepower 275 @ 5600 rpm 300 @ 6000 rpm
Torque 300 lb.-ft. @ 4000 rpm 295 lb.-ft. @ 4400 rpm
Tappets Direct acting hydraulic tappets.
Fuel supply Tuned port fuel injection.


Feature Dimension
Wheelbase 113.8 in.
Overall Length 209.8 in.
Height 56.0 in.
Width 76.5 in.
Front Tread 60.9 in.
Rear Tread 60.9 in.
Deville Tires Michelin P225/60SR16
Concours Tires Goodyear Eagle RS-A P225/60HR16


Feature De Ville Concours
Transmission 4T80-E electronically controlled four-speed automatic (includes viscous converter clutch)
Steering Power-assisted rack-and-pinion, Magnasteer
Front Suspension Independent MacPherson strut with coil springs. strut-type shock absorbers and stabilizer bar and MacPherson strut dampers Independent MacPherson strut with coil springs. stabilizer bar and electronic continuously variable road sensing suspension.
Rear Suspension Fully independent short/long arm. rear shock w/airilft and stabilizer bar w/automatic level control Fully independent, coil springs. short/long arm and stabilizer bar w/automatic lever control and electronic continuously variable road sensing suspension
Brakes Power assisted front and rear discw/Bosch anti-lock braking system also with road texture detection
Body Construction Integral body-frame
Fuel Tank 20.0 gals.


V92 3,000-Pound Trailer Towing Pkg. $110
R8J Special Ed. Pkg. $2,497.
WA7 Comfort/Convenience Pkg. $867.
WA8 Safety/Security Pkg. on DeVille d�Elegance $995
WA8 Safety/Security Pkg. on Concours $502.
Express Open Sunroof $1,550.
White Diamond Paint $500
Crimson Pearl Paint $500.
H.D. Livery Pkg. $160.
Leather Seats $785.
Active Audio Sound Syst. w/Cassette & CD on DeVille $670
Active Audio Sound Syst. w/Cassette & CD & Digital Signal Processing on DeVille $770:
Active Audio Sound Syst. w/Cassette & CD & Digital Signal Processing on d’Elegance & Concours) $100.
Trunk Mounted 12-Disc CD Changer $595.
Trunk Storage Syst $265.
Chrome wheels $795.