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2008 Pontiac Grand Prix

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$22,210 - $29,325 Starting MSRP
Model Highlights
Body Type



Automatic w/OD& TAPshift


5 Seats


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The front-wheel-drive 2008 Pontiac Grand Prix sedan is available in two different models, both with their own powertrain. The base Grand Prix has a 200-horsepower, 3.8L V6 underhood, while the GXP model packs a 303-horsepower, 5.3L V8. Both...

Pontiac Grand Prix
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EPA Classification: Mid-Size
Engine Order Code: LS4
Engine Type: Gas V8
Displacement: 5.3L/346
Fuel System: SFI
SAE Net Horsepower @ RPM: 303 @ 5600
SAE Net Torque @ RPM: 323 @ 4000
Drivetrain: Front Wheel Drive
Trans Order Code: MX0
Trans Type: 4
Trans Description Cont.: Automatic w/OD
Trans Description Cont. Again: & TAPshift
First Gear Ratio (:1): 2.92
Second Gear Ratio (:1): 1.56
Third Gear Ratio (:1): 1.00
Fourth Gear Ratio (:1): 0.70
Fifth Gear Ratio (:1):
Sixth Gear Ratio (:1):
Reverse Ratio (:1): 2.38
Clutch Size (in):
Final Drive Axle Ratio (:1): 2.93
EPA Fuel Economy Est - City (MPG): 16
EPA Fuel Economy Est - Hwy (MPG): 25
Cold Cranking Amps @ 0° F (Primary): - TBD -
Maximum Alternator Capacity (amps): - TBD -
Total Cooling System Capacity (qts): 13.0
Base Curb Weight (lbs): 3600
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):
Suspension Type - Front: High-Performance
Suspension Type - Rear: High-Performance
Suspension Type - Front (Cont.): Independent
Suspension Type - Rear (Cont.): Independent
Shock Absorber Diameter - Front (mm): - TBD -
Shock Absorber Diameter - Rear (mm): - TBD -
Stabilizer Bar Diameter - Front (in): 0.79
Stabilizer Bar Diameter - Rear (in): 0.68
Brake Type: Pwr
Brake ABS System: 4-Wheel
Disc - Front (Yes or ): Yes
Disc - Rear (Yes or ): Yes
Front Brake Rotor Diam x Thickness (in): 12.7 x - TBD -
Rear Brake Rotor Diam x Thickness (in): 12.0 x - TBD -
Drum - Rear (Yes or ):
Rear Drum Diam x Width (in):
Front Tire Order Code: Q22
Rear Tire Order Code: Q22
Spare Tire Order Code:
Front Tire Size: P255/45R18
Rear Tire Size: P225/50R18
Spare Tire Size: N/A
Front Wheel Size (in): 18 x 8
Rear Wheel Size (in): 18 x 7
Spare Wheel Size (in): N/A
Front Wheel Material: Aluminum
Rear Wheel Material: Aluminum
Spare Wheel Material: N/A
Steering Type: Variable-Effort Pwr Rack & Pinion
Steering Ratio (:1), Overall: 13.2
Lock to Lock Turns (Steering): 2.4
Turning Diameter - Curb to Curb (ft): 38.0
Turning Diameter - Wall to Wall (ft): - TBD -
Fuel Tank Capacity, Approx (gal): 17
Wheelbase (in): 110.5
Length, Overall (in): 198.3
Width, Max w/o mirrors (in): 71.6
Height, Overall (in): 55.9
Track Width, Front (in): 61.6
Track Width, Rear (in): 61.3
Min Ground Clearance (in): - TBD -
Liftover Height (in): - TBD -
Trunk Volume (ft³): 16.0
Passenger Capacity: 5
Passenger Volume (ft³): 98.0
Front Head Room (in): 38.8
Front Leg Room (in): 42.2
Front Shoulder Room (in): 58.0
Front Hip Room (in): 54.5
Second Head Room (in): 36.2
Second Leg Room (in): 36.2
Second Shoulder Room (in): 54.8
Second Hip Room (in): 54.3
Vehicle Name: Pontiac Grand Prix
Body Style: 4 Door Sedan


This model has 2 different trims.
Description5.3L/346, 303 @ 5600, Automatic w/OD& TAPshift

Fuel Economy

This model has 2 different trims.
City16 MPG
Hwy25 MPG
Combinedundefined MPG
Description5.3L/346, 303 @ 5600, Automatic w/OD& TAPshift

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