Cadillac STS Cadillac STS 2008 Pontiac G6 Pontiac G6 2009

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Cadillac STS vs. Pontiac G6 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 G6 Invoice Comparison

Lowest Total Price: $27,235

Pontiac G6   
Difference: $18,615

Lowest Total Invoice: $25,075

Pontiac G6   
Difference: $17,709

Calculate Payments

  Down Payment Interest Rate Term
Model Year20082008200920092009
ModelSTSSTSG6G6G6
TrimV6V8BaseGTGXP
Body4dr Sedan4dr Sedan4dr Sedan4dr Sedan4dr Sedan
Base Price $43,775 $53,275 $20,490 $24,180 $28,580
Base Invoice $40,930 $49,812 $19,363 $22,850 $27,008
Engine-block heater 100 100 75 75 75
Sunroof 1,200        
Chrome Appearance Package     995    
Preferred Package     795    
Sport Package 2     1,495    
Premium Package     1,195 1,195  
Sun and Sound Package     1,395    
Cargo net     45    
Floor mats     80    
GT Street Edition       1,590  
Sun and Sound Plus Package       1,235 1,435
Engine-block heater 83 83 62 62 62
Sunroof 996        
Chrome Appearance Package     826    
Preferred Package     660    
Sport Package 2     1,241    
Premium Package     992 992  
Sun and Sound Package     1,158    
Cargo net     37    
Floor mats     66    
GT Street Edition       1,320  
Sun and Sound Plus Package       1,025 1,191
Options (change) 1,300 100 6,075 4,095 1,510
Options (change) 1,079 83 5,042 3,399 1,253
Destination 775 775 670 670 670
Total Price $45,850 $54,150 $27,235 $28,945 $30,760
Total Invoice $42,784 $50,670 $25,075 $26,919 $28,931

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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

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Request free, no-obligation Cadillac STS dealer quotes or Pontiac G6 dealer quotes from dealers using our car quote form.

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TrueDelta Value Comparison: Cadillac STS vs. Pontiac G6

Lowest Adjusted Price and Invoice: Pontiac G6
TrueDelta Adjusted Price Difference: $16,800
TrueDelta Adjusted Invoice Difference: $16,015
Model Year20082008200920092009
ModelSTSSTSG6G6G6
TrimV6V8BaseGTGXP
Body4dr Sedan4dr Sedan4dr Sedan4dr Sedan4dr Sedan
Engine302hp V6320hp V8219hp V6219hp V6252hp V6
TransmissionT6T6A4T4T6
DrivetrainRWDRWDFWDFWDFWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG/ MPG/ MPG
Audio (watts, speakers)?, 8?, 8?, 6200, 8200, 8
Tire (rear if not all the same)235/50-17235/50-17225/50-17225/50-18225/50-18
Total Price$45,850$54,150$27,235$28,945$30,760
Adjustments for Features-1,815-2,7550-230-880
Feature-Adjusted Total Price$44,035$51,395$27,235$28,715$29,880
Cost Above Minimum$0$7,360$0$1,480$2,645
Total Invoice$42,784$50,670$25,075$26,919$28,931
Adjustments for Features-1,694-2,5780-214-828
Feature-Adjusted Total Invoice$41,090$48,092$25,075$26,705$28,103
Cost Above Minimum$0$7,002$0$1,630$3,028

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Features Comparison: Cadillac STS vs. Pontiac G6

Model Year20082008200920092009
ModelSTSSTSG6G6G6
TrimV6V8BaseGTGXP
Body4dr Sedan4dr Sedan4dr Sedan4dr Sedan4dr Sedan
Transmission and Drivetrain 
6-speed manually-shiftable automatic$1100$1100  $1100
4-speed automatic  $800  
4-speed manually-shiftable automatic   $900 
RWD$0$0   
FWD  $0$0$0
Accessories 
Heated steering wheel $100   
Proximity key$250$250   
Tilt/telescoping steering wheel, manual  $250$250$250
Tilt/telescoping steering wheel, power$350$350   
Universal garage door opener $100   
Brakes, Airbags, and Other Safety 
Brake assist$50$50   
Obstacle detection, rear$250$250   
Stability control$400$400 $400$400
Cargo Management 
Cargo net $40$40$40$40
Rear seat pass-through$100$100   
Climate Control 
Automatic air recirculation$100$100   
Automatic climate control, front$200$200  $200
Dual-zone climate control$125$125   
Interior air filter$0$0   
Rain-sensing wipers $175   
Rear air vents with manual controls$150$150   
Variable intermittent wipers$75 $75$75$75
Exterior 
Body kit   $0$0
Laminated front side windows$200$200   
Rear spoiler  $200$200$200
Sunroof$900 $900$900$900
Infotainment 
Aux input  $50$50$50
CD changer, in-dash $325$325$325$325
CD player$125    
DVD-Audio-compatible player $0   
Telematics service, such as OnStar  $200$200$200
Telematics service, such as OnStar, with navigation$225$225   
Instruments, Lights, and Mirrors 
Auto-dimming driver-side mirror$75$75   
Heated mirrors$25$25   
Illuminated visor mirror, driver$50$50 $50$50
Illuminated visor mirror, passenger$50$50 $50$50
Turn signals on or near mirrors$25$25   
Visor mirror, driver  $10  
Visor mirror, passenger  $10  
Seats and Interior Trim 
Aluminum trim$100    
Center armrest(s), second row$50$50   
Door sill trim plates$100$100$100  
Folding second row seats  $300$300$300
Heated front seats $200$200$200$200
Heated second row seats $200   
Leather-wrapped steering wheel$150 $150$150$150
Manual lumbar adjuster, driver seat  $50$50$50
Memory system, driver seat $200   
Power 4-way lumbar adjuster, driver seat $150   
Power 4-way lumbar adjuster, passenger seat $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   
Wood trim $300   
Wood/leather-wrapped steering wheel $150   
Suspension, Wheels, and Tires 
Auto-leveling rear shocks $200   
Chrome-clad alloy wheels  $600 $600
Machined alloy wheels   $350 
Performance steering system (optional)  $0$0$0
Polished alloy wheels$350$350   
Sport suspension (upgrade)   $0$0
Total Value of Features$6,075$7,015$4,260$4,490$5,140
Value of Feature Adjustments$1,815$2,755$0$230$880
Value of Feature Adjustments-1,694-2,5780-214-828

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Specifications Comparison: Cadillac STS vs. Pontiac G6

Model Year20082009
ModelSTSG6
Body4dr Sedan4dr Sedan
Wheelbase116.4 in112.3 in
Length196.7 in189.1 in
Width72.6 in70.6 in
Height57.6 in57.0 in
Curb Weight3,974 lb.3,458 lb.
Fuel Capacity17.0 gal.16.4 gal.
Row 1 Headroom38.7 in39.0 in
Row 1 Shoulder Room58.6 in55.4 in
Row 1 Hip Room54.6 in52.7 in
Row 1 Legroom42.6 in42.2 in
Row 2 Headroom37.9 in36.5 in
Row 2 Shoulder Room57.4 in55.4 in
Row 2 Hip Room55.6 in51.9 in
Row 2 Legroom38.3 in37.6 in
Cargo Volume13.8 ft314.0 ft3

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Option Package Details
Pontiac G6

Chrome Appearance Package
FeatureValueRequested?
Additional chrome trim0No
Bright-finished exhaust tip(s)25Yes
Chrome grille (optional)0No
Door sill trim plates100Yes
Chrome-clad alloy wheels250Yes
Total Requested375100%
Total Not Requested00%
Preferred Package
FeatureValueRequested?
Audio controls on steering wheel125Yes
Cruise control150Yes
Leather-wrapped steering wheel150Yes
Remote start150Yes
Total Requested575100%
Total Not Requested00%
Sport Package 2
FeatureValueRequested?
Fog lights125Yes
Alloy wheels350Yes
Rear spoiler200No
Performance steering system (optional)250No
3.5L V6
OHV-2v
219 hp@5900
219 lb-ft@3200
1000No
225/50VR17 tires400No
Total Requested47520%
Total Not Requested185080%
Premium Package
FeatureValueRequested?
Leather seating surfaces900Yes
Heated front seats200Yes
Power fore-aft adjuster, driver seat100Yes
Power tilt adjuster, driver seat100Yes
Total Requested1300100%
Total Not Requested00%
Sun and Sound Package
FeatureValueRequested?
Sunroof900Yes
CD changer, in-dash200Yes
Visor mirror, driver10Yes
Visor mirror, passenger10Yes
Auto-dimming rearview mirror150Yes
Compass0Yes
Total Requested1270100%
Total Not Requested00%

Option Package Details
Pontiac G6 GT

GT Street Edition
FeatureValueRequested?
Stability control400Yes
Body kit0No
Machined alloy wheels0No
225/50R18 tires400No
Total Requested40050%
Total Not Requested40050%
Premium Package
FeatureValueRequested?
Leather seating surfaces900Yes
Heated front seats200Yes
Power fore-aft adjuster, driver seat100Yes
Power tilt adjuster, driver seat100Yes
Total Requested1300100%
Total Not Requested00%
Sun and Sound Plus Package
FeatureValueRequested?
Sunroof900Yes
CD changer, in-dash200Yes
Chrome-clad alloy wheels250Yes
Total Requested1350100%
Total Not Requested00%

Option Package Details
Pontiac G6 GXP

Sun and Sound Plus Package
FeatureValueRequested?
Sunroof900Yes
CD changer, in-dash200Yes
Total Requested1100100%
Total Not Requested00%

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