Specs

Research 1999 Pontiac Grand Prix specs for the trims available. Choose the desired trim / style from the dropdown list to see the corresponding specs.

GT 2dr Coupe GT

Brakes

Disc - Front (Yes or ) Yes
Disc - Rear (Yes or ) Yes
Brake Type Power
Rear Brake Rotor Diam x Thickness (in) 10.9 x 0.43
Drum - Rear (Yes or )
Rear Drum Diam x Width (in)
Brake ABS System 4-Wheel
Front Brake Rotor Diam x Thickness (in) 10.8 x 1.26

Cargo Area Dimensions

Trunk Volume (ft³) 16.0

Cooling System

Total Cooling System Capacity (qts) 12.3

Electrical

Cold Cranking Amps @ 0° F (Primary) 690
Maximum Alternator Capacity (amps) 105

Engine

Displacement 3.8L/231
SAE Net Horsepower @ RPM 200 @ 5200
SAE Net Torque @ RPM 225 @ 4000
Engine Order Code L36
Engine Type Gas V6
Fuel System SFI

Exterior Dimensions

Wheelbase (in) 110.5
Liftover Height (in) 30.9
Min Ground Clearance (in) 5.5
Track Width, Rear (in) 61.1
Track Width, Front (in) 61.7
Height, Overall (in) 54.7
Width, Max w/o mirrors (in) 72.7
Length, Overall (in) 196.5

Fuel Tank

Fuel Tank Capacity, Approx (gal) 18.0

Interior Dimensions

Passenger Volume (ft³) 94.1
Passenger Capacity 6
Passenger Capacity 5
Second Hip Room (in) 54.3
Second Shoulder Room (in) 57.9
Second Leg Room (in) 36.1
Second Head Room (in) 36.5
Front Hip Room (in) 55.7
Front Shoulder Room (in) 58.5
Front Leg Room (in) 42.4
Front Head Room (in) 38.3

Mileage

EPA Fuel Economy Est - Hwy (MPG) 30
EPA Fuel Economy Est - City (MPG) 19

Steering

Turning Diameter - Curb to Curb (ft) 36.9
Steering Ratio (:1), Overall 17.6
Turning Diameter - Wall to Wall (ft) - TBD -
Lock to Lock Turns (Steering) 2.3
Steering Type Variable-Effort Power Rack & Pinion

Summary

Body Style 2 Door Coupe
Vehicle Name Pontiac Grand Prix

Suspension

Suspension Type - Rear Tri-Link
Suspension Type - Front (Cont.) w/Coil Springs
Suspension Type - Rear (Cont.) w/Coil Springs
Shock Absorber Diameter - Front (mm) 32
Shock Absorber Diameter - Rear (mm) 32
Stabilizer Bar Diameter - Front (in) 1.18
Stabilizer Bar Diameter - Rear (in) 0.71
Suspension Type - Front MacPherson Strut

Tires

Rear Tire Size P225/60R16
Front Tire Size P225/60R16
Spare Tire Order Code
Rear Tire Order Code QNX
Front Tire Order Code QNX
Spare Tire Size T125/70D15

Trailering

Dead Weight Hitch - Max Trailer Wt. (lbs) 1000
Dead Weight Hitch - Max Tongue Wt. (lbs) 100
Wt Distributing Hitch - Max Trailer Wt. (lbs)
Wt Distributing Hitch - Max Tongue Wt. (lbs)

Transmission

Seventh Gear Ratio (:1)
Third Gear Ratio (:1) 1.00
Second Gear Ratio (:1) 1.57
First Gear Ratio (:1) 2.92
Trans Description Cont. Again Electronic
Trans Description Cont. Automatic w/OD,
Trans Type 4
Trans Order Code
Drivetrain Front Wheel Drive
Final Drive Axle Ratio (:1) 3.29
Clutch Size (in)
Reverse Ratio (:1) 2.39
Sixth Gear Ratio (:1)
Fifth Gear Ratio (:1)
Fourth Gear Ratio (:1) 0.71

Vehicle

EPA Classification Mid-Size

Weight Information

Base Curb Weight (lbs) 3396

Wheels

Spare Wheel Size (in) 15 x 4
Rear Wheel Size (in) 16 x 6.5
Rear Wheel Material Aluminum
Spare Wheel Material Steel
Front Wheel Size (in) 16 x 6.5
Front Wheel Material Aluminum