Pontiac G6 Pontiac G6 2009 Cadillac STS Cadillac STS 2008

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Pontiac G6 vs. Cadillac STS 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.

Pontiac G6 vs. Cadillac STS 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 Year20092009200920082008
ModelG6G6G6STSSTS
TrimBaseGTGXPV6V8
Body4dr Sedan4dr Sedan4dr Sedan4dr Sedan4dr Sedan
Base Price $20,490 $24,180 $28,580 $43,775 $53,275
Base Invoice $19,363 $22,850 $27,008 $40,930 $49,812
Chrome Appearance Package 995        
Preferred Package 795        
Sport Package 2 1,495        
Sun and Sound Package 1,395        
Premium Package 1,195 1,195      
Floor mats 80        
Cargo net 45        
Engine-block heater 75 75 75 100 100
GT Street Edition   1,590      
Sun and Sound Plus Package   1,235 1,435    
Sunroof       1,200  
Chrome Appearance Package 826        
Preferred Package 660        
Sport Package 2 1,241        
Sun and Sound Package 1,158        
Premium Package 992 992      
Floor mats 66        
Cargo net 37        
Engine-block heater 62 62 62 83 83
GT Street Edition   1,320      
Sun and Sound Plus Package   1,025 1,191    
Sunroof       996  
Options (change) 6,075 4,095 1,510 1,300 100
Options (change) 5,042 3,399 1,253 1,079 83
Destination 670 670 670 775 775
Total Price $27,235 $28,945 $30,760 $45,850 $54,150
Total Invoice $25,075 $26,919 $28,931 $42,784 $50,670

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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 Pontiac G6 dealer quotes or Cadillac STS dealer quotes from dealers using our car quote form.

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TrueDelta Value Comparison: Pontiac G6 vs. Cadillac STS

Lowest Adjusted Price and Invoice: Pontiac G6
TrueDelta Adjusted Price Difference: $16,800
TrueDelta Adjusted Invoice Difference: $16,015
Model Year20092009200920082008
ModelG6G6G6STSSTS
TrimBaseGTGXPV6V8
Body4dr Sedan4dr Sedan4dr Sedan4dr Sedan4dr Sedan
Engine219hp V6219hp V6252hp V6302hp V6320hp V8
TransmissionA4T4T6T6T6
DrivetrainFWDFWDFWDRWDRWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG/ MPG/ MPG
Audio (watts, speakers)?, 6200, 8200, 8?, 8?, 8
Tire (rear if not all the same)225/50-17225/50-18225/50-18235/50-17235/50-17
Total Price$27,235$28,945$30,760$45,850$54,150
Adjustments for Features0-230-880-1,815-2,755
Feature-Adjusted Total Price$27,235$28,715$29,880$44,035$51,395
Cost Above Minimum$0$1,480$2,645$0$7,360
Total Invoice$25,075$26,919$28,931$42,784$50,670
Adjustments for Features0-214-828-1,694-2,578
Feature-Adjusted Total Invoice$25,075$26,705$28,103$41,090$48,092
Cost Above Minimum$0$1,630$3,028$0$7,002

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Features Comparison: Pontiac G6 vs. Cadillac STS

Model Year20092009200920082008
ModelG6G6G6STSSTS
TrimBaseGTGXPV6V8
Body4dr Sedan4dr Sedan4dr Sedan4dr Sedan4dr Sedan
Transmission and Drivetrain 
4-speed automatic$800    
4-speed manually-shiftable automatic $900   
6-speed manually-shiftable automatic  $1100$1100$1100
FWD$0$0$0  
RWD   $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$4,260$4,490$5,140$6,075$7,015
Value of Feature Adjustments$0$230$880$1,815$2,755
Value of Feature Adjustments0-214-828-1,694-2,578

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Specifications Comparison: Pontiac G6 vs. Cadillac STS

Model Year20092008
ModelG6STS
Body4dr Sedan4dr Sedan
Wheelbase112.3 in116.4 in
Length189.1 in196.7 in
Width70.6 in72.6 in
Height57.0 in57.6 in
Curb Weight3,458 lb.3,974 lb.
Fuel Capacity16.4 gal.17.0 gal.
Row 1 Headroom39.0 in38.7 in
Row 1 Shoulder Room55.4 in58.6 in
Row 1 Hip Room52.7 in54.6 in
Row 1 Legroom42.2 in42.6 in
Row 2 Headroom36.5 in37.9 in
Row 2 Shoulder Room55.4 in57.4 in
Row 2 Hip Room51.9 in55.6 in
Row 2 Legroom37.6 in38.3 in
Cargo Volume14.0 ft313.8 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 plates100No
Chrome-clad alloy wheels250Yes
Total Requested27573%
Total Not Requested10027%
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%
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%
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%

Option Package Details
Pontiac G6 GT

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%
GT Street Edition
FeatureValueRequested?
Stability control400Yes
Body kit0No
Machined alloy wheels0No
225/50R18 tires400No
Total Requested40050%
Total Not Requested40050%
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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