Cadillac STS Cadillac STS 2011 Pontiac Grand Prix Pontiac Grand Prix 2008

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Cadillac STS vs. Pontiac Grand Prix Price Comparison (MSRP)

The sticker prices, before adjusting for remaining feature differences. Usually these are the numbers you will see on the window stickers.

Models in short supply often sell at or even above these prices.

Cadillac STS vs. Pontiac Grand Prix Invoice Comparison

Lowest Total Price: $33,865

Pontiac Grand Prix GXP   
Difference: $22,530

Lowest Total Invoice: $31,607

Pontiac Grand Prix GXP   
Difference: $21,423

Calculate Payments

  Down Payment Interest Rate Term
Model Year201120112008
ModelSTSSTSGrand Prix
TrimLuxuryPremiumGXP
Body4dr Sedan4dr Sedan4dr Sedan
Base Price $50,820 $56,380 $29,325
Base Invoice $48,024 $53,279 $27,712
Premium Luxury Collection 4,600 2,840  
Engine-block heater 100 100 75
Floor mats     80
Satellite radio     200
Sunroof     895
Navigation system     2,145
Side curtain airbags     395
Premium Luxury Collection 4,048 2,499  
Engine-block heater 83 83 62
Floor mats     66
Satellite radio     166
Sunroof     743
Navigation system     1,780
Side curtain airbags     328
Options (change) 4,700 2,940 3,790
Options (change) 4,131 2,582 3,145
Destination 875 875 750
Total Price $56,395 $60,195 $33,865
Total Invoice $53,030 $56,736 $31,607

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While we strive for accuracy, the site is not error-free, and prices can change at any time.

Dealer Price Quotes

Want to find out how much dealers are willing to discount these cars?

Request free, no-obligation Cadillac STS dealer quotes or Pontiac Grand Prix dealer quotes from dealers using our car quote form.

The process is easy and takes just a minute or two. You'll receive price quotes from local approved dealers within 48 hours.

TrueDelta Value Comparison: Cadillac STS vs. Pontiac Grand Prix

Lowest Adjusted Price and Invoice: Pontiac Grand Prix GXP
TrueDelta Adjusted Price Difference: $18,205
TrueDelta Adjusted Invoice Difference: $17,356
Model Year201120112008
ModelSTSSTSGrand Prix
TrimLuxuryPremiumGXP
Body4dr Sedan4dr Sedan4dr Sedan
Engine302hp V6302hp V6303hp V8
TransmissionT6T6T4
DrivetrainRWDRWDFWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG
Audio (watts, speakers)?, 8300, 15245, 9
Tire (rear if not all the same)235/50-17235/50-18255/45-18
Total Price$56,395$60,195$33,865
Adjustments for Features-4,325-6,7500
Feature-Adjusted Total Price$52,070$53,445$33,865
Cost Above Minimum$0$1,375$0
Total Invoice$53,030$56,736$31,607
Adjustments for Features-4,067-6,3620
Feature-Adjusted Total Invoice$48,963$50,374$31,607
Cost Above Minimum$0$1,411$0

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Features Comparison: Cadillac STS vs. Pontiac Grand Prix

Model Year201120112008
ModelSTSSTSGrand Prix
TrimLuxuryPremiumGXP
Body4dr Sedan4dr Sedan4dr Sedan
Transmission and Drivetrain 
6-speed manually-shiftable automatic$1100$1100 
4-speed manually-shiftable automatic  $900
RWD$0$0 
FWD  $0
Accessories 
Heated steering wheel$100$100 
Proximity key$250$250 
Remote keyless entry$225$225 
Remote keyless entry, extended range  $225
Tilt steering wheel, manual  $150
Tilt/telescoping steering wheel, power$350$350 
Universal garage door opener$100$100 
Brakes, Airbags, and Other Safety 
Blind spot warning system$200$200 
Brake assist$50$50 
Front side airbags$350$350 
Lane departure warning$200$200 
Obstacle detection, rear$250$250 
Cargo Management 
Rear seat pass-through$100$100 
Climate Control 
Automatic air recirculation$100$100 
Rear air vents with manual controls$150$150 
Drivetrain 
Limited-slip rear differential $300 
Exterior 
Bodyside moldings  $75
Laminated front side windows$200$200 
Rear spoiler $200$200
Infotainment 
Bluetooth cell phone link$100$100 
CD changer, in-dash$325$325 
CD player  $125
DVD-Audio-compatible player$0  
DVD-compatible player $0 
Navigation system $600$600
Rear seat audio controls $25 
Surround sound $250 
Telematics service, such as OnStar  $200
Telematics service, such as OnStar, with navigation$225$225 
Voice control for nav and audio $100 
Instruments, Lights, and Mirrors 
Auto-dimming driver-side mirror$75$75 
Auto-dimming headlights $200 
Auto-dimming rearview mirror$150$150 
Compass$0 $0
Headlight washers $50 
Heated mirrors$25$25 
Turn signals on or near mirrors$25$25 
Xenon HID headlights $500 
Seats and Interior Trim 
Center armrest(s), second row$50$50 
Cooled or ventilated front seats$300$300 
Folding passenger seat  $150
Folding second row seats  $300
Heated second row seats$200$200 
Leather seating surfaces$900$900 
Leather-wrapped steering wheel  $150
Memory system, driver seat$200$200 
Power 4-way lumbar adjuster, passenger seat$150$150 
Power fore-aft adjuster, passenger seat$100$100 
Power height adjuster, passenger seat$100$100 
Power recliner, driver seat$100$100 
Power recliner, passenger seat$100$100 
Power tilt adjuster, passenger seat$100$100 
Synthetic suede inserts in leather seating surfaces  $0
Wood trim$300$300 
Wood/leather-wrapped steering wheel$150$150 
Suspension, Wheels, and Tires 
Auto-leveling rear shocks $200 
Performance steering system (optional)  $0
Sport suspension (upgrade) $0$0
Total Value of Features$7,400$9,825$3,075
Value of Feature Adjustments$4,325$6,750$0
Value of Feature Adjustments-4,067-6,3620

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Specifications Comparison: Cadillac STS vs. Pontiac Grand Prix

Model Year20112008
ModelSTSGrand Prix
Body4dr Sedan4dr Sedan
Wheelbase116.4 in110.5 in
Length196.7 in198.3 in
Width72.6 in71.6 in
Height57.6 in55.9 in
Curb Weight3,974 lb.3,478 lb.
Fuel Capacity17.0 gal.17.0 gal.
Row 1 Headroom38.7 in38.8 in
Row 1 Shoulder Room58.6 in58.0 in
Row 1 Hip Room54.6 in54.5 in
Row 1 Legroom42.6 in42.2 in
Row 2 Headroom37.9 in36.2 in
Row 2 Shoulder Room57.4 in54.8 in
Row 2 Hip Room55.6 in54.3 in
Row 2 Legroom38.3 in36.2 in
Cargo Volume13.8 ft316.0 ft3

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Option Package Details
Cadillac STS Luxury

Premium Luxury Collection
FeatureValueRequested?
Sunroof900Yes
Termporary spare tire150Yes
Head-up display (HUD)350Yes
Lane departure warning system200No
Blind spot warning system200No
Total Requested140078%
Total Not Requested40022%

Option Package Details
Cadillac STS Premium

Premium Luxury Collection
FeatureValueRequested?
Sunroof900Yes
Termporary spare tire150Yes
Head-up display (HUD)350Yes
Lane departure warning system200No
Blind spot warning system200No
Total Requested140078%
Total Not Requested40022%

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