Research 1998 Cadillac DeVille specs for the trims available. Choose the desired trim / style from the dropdown list to see the corresponding specs.

4dr Sedan


Brake Type Power
Rear Brake Rotor Diam x Thickness (in) 10.9 x 0.4
Front Brake Rotor Diam x Thickness (in) 11.9 x 1.3
Rear Drum Diam x Width (in)
Drum - Rear (Yes or )
Disc - Rear (Yes or ) Yes
Disc - Front (Yes or ) Yes
Brake ABS System Yes

Cargo Area Dimensions

Trunk Volume (ft³) 19.9

Cooling System

Total Cooling System Capacity (qts) 12.5


Cold Cranking Amps @ 0° F (Primary) 770
Maximum Alternator Capacity (amps) 140


Engine Order Code
Engine Type Gas V8
Displacement 4.6L/279
Fuel System SFI
SAE Net Horsepower @ RPM 300 @ 6000
SAE Net Torque @ RPM 295 @ 4400

Exterior Dimensions

Liftover Height (in) 26.7
Length, Overall (in) 209.8
Wheelbase (in) 113.8
Height, Overall (in) 56.0
Width, Max w/o mirrors (in) 76.5
Track Width, Front (in) 60.9
Track Width, Rear (in) 60.9
Min Ground Clearance (in) 5.5

Fuel Tank

Fuel Tank Capacity, Approx (gal) 20.0

Interior Dimensions

Passenger Capacity 5
Second Hip Room (in) 57.3
Second Shoulder Room (in) 60.8
Second Leg Room (in) 43.3
Second Head Room (in) 38.4
Front Hip Room (in) 58.1
Front Shoulder Room (in) 60.9
Front Leg Room (in) 42.6
Front Head Room (in) 38.5
Passenger Volume (ft³) 116.9


EPA Fuel Economy Est - Hwy (MPG) 26
EPA Fuel Economy Est - City (MPG) 17


Turning Diameter - Wall to Wall (ft) 44.0
Lock to Lock Turns (Steering) 2.83
Steering Ratio (:1), Overall 14.1
Steering Type Power Rack & Pinion
Turning Diameter - Curb to Curb (ft) 41.0


Vehicle Name Cadillac Concours
Body Style 4 Door Sedan


Suspension Type - Rear Short/Long Arm
Suspension Type - Rear (Cont.) w/Coil Spring
Shock Absorber Diameter - Front (mm) 32
Shock Absorber Diameter - Rear (mm) 32
Stabilizer Bar Diameter - Front (in) 0.75
Stabilizer Bar Diameter - Rear (in) 0.55
Suspension Type - Front MacPherson Strut
Suspension Type - Front (Cont.) w/Coil Spring


Rear Tire Order Code
Front Tire Order Code
Spare Tire Order Code
Front Tire Size P225/60R16
Rear Tire Size P225/60R16
Spare Tire Size T125/70R16


Wt Distributing Hitch - Max Tongue Wt. (lbs) 300
Dead Weight Hitch - Max Trailer Wt. (lbs)
Dead Weight Hitch - Max Tongue Wt. (lbs)
Wt Distributing Hitch - Max Trailer Wt. (lbs) 3000


Drivetrain Front Wheel Drive
Sixth Gear Ratio (:1)
Fifth Gear Ratio (:1)
Fourth Gear Ratio (:1) 0.68
Third Gear Ratio (:1) 1.00
Second Gear Ratio (:1) 1.63
First Gear Ratio (:1) 2.96
Trans Description Cont. Again Electronic
Trans Description Cont. Automatic w/OD,
Trans Type 4
Trans Order Code
Final Drive Axle Ratio (:1) 3.71
Clutch Size (in) N/A
Reverse Ratio (:1) 2.13


EPA Classification Full Size

Weight Information

Base Curb Weight (lbs) 4063


Front Wheel Size (in) 16 x 7.0
Front Wheel Material Aluminum
Rear Wheel Material Chrome
Rear Wheel Material Aluminum
Spare Wheel Material Aluminum
Spare Wheel Size (in) 16 x 4.0
Front Wheel Material Chrome
Rear Wheel Size (in) 16 x 7.0