1999 Pontiac Grand Am 2-Door Coupe GT1 Specs

2-Door Coupe GT1
MSRP based on 2-Door Coupe GT1

Quick Specs

Gas Mileage 20 mpg City/28 mpg Hwy
Engine Gas V6, 3.4L
EPA Class Compact
Style Name 2dr Cpe GT1
Drivetrain Front Wheel Drive
Passenger Capacity 5
Passenger Doors 2
Body Style 2dr Car
Transmission 4-speed electronically-controlled automatic transmission w/OD


EPA Classification Compact
Weight Information
Base Curb Weight (lbs) 3091
Interior Dimensions
Front Head Room (in) 38.3
Second Leg Room (in) 35.5
Passenger Capacity 5
Front Hip Room (in) 52.4
Front Leg Room (in) 42.1
Second Shoulder Room (in) 55.0
Passenger Volume (ft³) 93.0
Second Head Room (in) 37.2
Front Shoulder Room (in) 53.7
Second Hip Room (in) 49.3
Exterior Dimensions
Width, Max w/o mirrors (in) 70.4
Liftover Height (in) 30.4
Wheelbase (in) 107.0
Track Width, Rear (in) 59.1
Height, Overall (in) 55.1
Length, Overall (in) 186.3
Min Ground Clearance (in) 4.4
Track Width, Front (in) 59.0
Cargo Area Dimensions
Trunk Volume (ft³) 14.3

Fuel Economy

Fuel Tank
Fuel Tank Capacity, Approx (gal) 15.2
EPA Fuel Economy Est - City (MPG) 20
EPA Fuel Economy Est - Hwy (MPG) 28

Performance Specs

Displacement 3.4L/207
Engine Order Code LA1
SAE Net Torque @ RPM 205 @ 4000
Fuel System SFI
Engine Type Gas V6
SAE Net Horsepower @ RPM 175 @ 5200
Trans Type 4
Third Gear Ratio (:1) 1.00
Clutch Size (in) NA
Drivetrain Front Wheel Drive
First Gear Ratio (:1) 2.96
Sixth Gear Ratio (:1) NA
Trans Description Cont. Automatic w/OD,
Fourth Gear Ratio (:1) 0.68
Final Drive Axle Ratio (:1) 3.29
Trans Order Code MX0
Second Gear Ratio (:1) 1.62
Reverse Ratio (:1) 2.13
Trans Description Cont. Again Electronic
Fifth Gear Ratio (:1) NA
Seventh Gear Ratio (:1) NA
Disc - Front (Yes or ) Yes
Rear Drum Diam x Width (in) NA
Brake Type Power
Rear Brake Rotor Diam x Thickness (in) NA
Disc - Rear (Yes or ) NA
Brake ABS System 4-Wheel
Drum - Rear (Yes or ) Yes
Front Brake Rotor Diam x Thickness (in) 10.8 x 1.0
Lock to Lock Turns (Steering) 2.5
Steering Type Variable-Effort Power Rack & Pinion
Turning Diameter - Curb to Curb (ft) 37.7
Steering Ratio (:1), Overall 14.7
Turning Diameter - Wall to Wall (ft) - TBD -
Spare Tire Order Code NA
Front Tire Order Code QSK
Spare Tire Size T115/70D15
Front Tire Size P225/50VR16
Rear Tire Order Code QSK
Rear Tire Size P225/50VR16
Spare Wheel Size (in) 15 x 4
Front Wheel Size (in) 16 x 7.0
Spare Wheel Material Steel
Front Wheel Material Aluminum
Rear Wheel Size (in) 16 x 7.0
Rear Wheel Material Aluminum
Suspension Type - Front (Cont.) MacPherson Strut
Stabilizer Bar Diameter - Rear (in) 0.60
Suspension Type - Front Independent
Shock Absorber Diameter - Rear (mm) 25
Suspension Type - Rear (Cont.) Tri-Link
Suspension Type - Rear Independent
Stabilizer Bar Diameter - Front (in) 0.94
Shock Absorber Diameter - Front (mm) 32

Safety Features

Air Bag-Frontal-Driver Yes
Air Bag-Frontal-Passenger Yes
Air Bag-Passenger Switch (On/Off) No
Air Bag-Side Body-Front No
Air Bag-Side Body-Rear No
Air Bag-Side Head-Front No
Air Bag-Side Head-Rear No
Brakes-ABS Yes
Child Safety Rear Door Locks No
Daytime Running Lights Yes
Traction Control Yes
Night Vision No
Rollover Protection Bars No
Fog Lamps Yes
Parking Aid No
Tire Pressure Monitor Yes
Back-Up Camera No
Stability Control No
Other Features 4-wheel anti-lock braking system (ABS)
Driver & front passenger next generation air bags
Front/rear outboard lap/shoulder safety belts
Rear outboard child comfort guides
Enhanced Traction System (ETS)
Brake/transmission shift interlock
Side-door guard beams
Daytime running lamps


Basic Miles/km 36,000
Basic Years 3
Roadside Assistance Miles/km 36,000
Roadside Assistance Years 3

Other Specs

Cooling System
Total Cooling System Capacity (qts) 13.1
Cold Cranking Amps @ 0° F (Primary) 600
Maximum Alternator Capacity (amps) 105
Wt Distributing Hitch - Max Trailer Wt. (lbs) NA
Dead Weight Hitch - Max Trailer Wt. (lbs) 1000
Wt Distributing Hitch - Max Tongue Wt. (lbs) NA
Dead Weight Hitch - Max Tongue Wt. (lbs) 100