Cadillac STS Cadillac STS 2011 Pontiac G8 Pontiac G8 2009

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Cadillac STS vs. Pontiac G8 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 G8 Invoice Comparison

Lowest Total Price: $40,895

Pontiac G8 GXP   
Difference: $17,560

Lowest Total Invoice: $38,673

Pontiac G8 GXP   
Difference: $16,537

Calculate Payments

  Down Payment Interest Rate Term
Model Year20112009
ModelSTSG8
TrimPremiumGXP
Body4dr Sedan4dr Sedan
Base Price $56,380 $37,610
Base Invoice $53,279 $35,541
Sunroof 1,200 900
Sunroof 1,056 747
Options (change) 1,200 900
Options (change) 1,056 747
Destination 875 685
Gas Tax 0 1,700
Total Price $58,455 $40,895
Total Invoice $55,210 $38,673

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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 G8 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 G8

Lowest Adjusted Price and Invoice: Pontiac G8 GXP
TrueDelta Adjusted Price Difference: $13,035
TrueDelta Adjusted Invoice Difference: $12,263
Model Year20112009
ModelSTSG8
TrimPremiumGXP
Body4dr Sedan4dr Sedan
Engine302hp V6415hp V8
TransmissionT6T6
DrivetrainRWDRWD
EPA Fuel Economy (city/highway)/ MPG/ MPG
Audio (watts, speakers)300, 15230, 11
Tire (rear if not all the same)235/50-18245/40-19
Total Price$58,455$40,895
Adjustments for Features-4,5250
Feature-Adjusted Total Price$53,930$40,895
Total Invoice$55,210$38,673
Adjustments for Features-4,2740
Feature-Adjusted Total Invoice$50,936$38,673

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Features Comparison: Cadillac STS vs. Pontiac G8

Model Year20112009
ModelSTSG8
TrimPremiumGXP
Body4dr Sedan4dr Sedan
Transmission and Drivetrain 
6-speed manually-shiftable automatic$1100$1100
RWD$0$0
Accessories 
Heated steering wheel$100 
Proximity key$250 
Tilt/telescoping steering wheel, manual $250
Tilt/telescoping steering wheel, power$350 
Universal garage door opener$100 
Brakes, Airbags, and Other Safety 
Obstacle detection, rear$250 
Climate Control 
Automatic air recirculation$100 
Interior air filter$0 
Rear air vents $100
Rear air vents with manual controls$150 
Exterior 
Hood scoop $100
Laminated front side windows$200 
Infotainment 
Aux input $50
DVD-compatible player$0 
MP3-compatible player $50
Navigation system$600 
Rear seat audio controls$25 
Surround sound$250 
Telematics service, such as OnStar $200
Telematics service, such as OnStar, with navigation$225 
USB port $25
Voice control for nav and audio$100 
Instruments, Lights, and Mirrors 
Auto-dimming driver-side mirror$75 
Auto-dimming headlights$200 
Auto-dimming rearview mirror$150 
Compass $0
Headlight washers$50 
Heated mirrors$25 
Outside temperature display$50 
Turn signals on or near mirrors$25 
Xenon HID headlights$500 
Seats and Interior Trim 
Cooled or ventilated front seats$300 
Heated second row seats$200 
Leather-wrapped steering wheel $150
Manual lumbar adjuster, driver seat $50
Manual lumbar adjuster, passenger seat $50
Memory system, driver seat$200 
Metal pedals $75
Power 4-way lumbar adjuster, driver seat$150 
Power 4-way lumbar adjuster, passenger seat$150 
Power recliner, driver seat$100 
Power recliner, passenger seat$100 
Wood trim$300 
Wood/leather-wrapped steering wheel$150 
Suspension, Wheels, and Tires 
Auto-leveling rear shocks$200 
Total Value of Features$6,725$2,200
Value of Feature Adjustments$4,525$0
Value of Feature Adjustments-4,2740

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Specifications Comparison: Cadillac STS vs. Pontiac G8

Model Year20112009
ModelSTSG8
Body4dr Sedan4dr Sedan
Wheelbase116.4 in114.8 in
Length196.7 in196.1 in
Width72.6 in74.8 in
Height57.6 in57.7 in
Curb Weight3,974 lb.3,856 lb.
Fuel Capacity17.0 gal.19.0 gal.
Row 1 Headroom38.7 in38.7 in
Row 1 Shoulder Room58.6 in59.1 in
Row 1 Hip Room54.6 in56.7 in
Row 1 Legroom42.6 in42.2 in
Row 2 Headroom37.9 in38.0 in
Row 2 Shoulder Room57.4 in59.1 in
Row 2 Hip Room55.6 in58.0 in
Row 2 Legroom38.3 in39.4 in
Cargo Volume13.8 ft317.5 ft3

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