Cadillac STS Cadillac STS 2006 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: $28,945

Pontiac G6 GT   
Difference: $16,735

Lowest Total Invoice: $26,919

Pontiac G6 GT   
Difference: $15,015

Calculate Payments

  Down Payment Interest Rate Term
Model Year20062006200620092009
ModelSTSSTSSTSG6G6
TrimV6V8STS-VGTGXP
Body4dr Sedan4dr Sedan4dr Sedan4dr Sedan4dr Sedan
Base Price $41,020 $47,520 $73,070 $24,180 $28,580
Base Invoice $37,944 $43,956 $67,704 $22,850 $27,008
Engine-block heater 100 100 100 75 75
Sunroof 1,200   1,200    
Preferred Equipment Group 1SB 2,640        
GT Street Edition       1,590  
Premium Package       1,195  
Sun and Sound Plus Package       1,235 1,435
Engine-block heater 83 83 83 62 62
Sunroof 996   996    
Preferred Equipment Group 1SB 2,191        
GT Street Edition       1,320  
Premium Package       992  
Sun and Sound Plus Package       1,025 1,191
Options (change) 3,940 100 1,300 4,095 1,510
Options (change) 3,270 83 1,079 3,399 1,253
Destination 720 720 720 670 670
Gas Tax 0 0 2,100 0 0
Total Price $45,680 $48,340 $77,190 $28,945 $30,760
Total Invoice $41,934 $44,759 $71,603 $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 GT
TrueDelta Adjusted Price Difference: $14,325
TrueDelta Adjusted Invoice Difference: $12,803
Model Year20062006200620092009
ModelSTSSTSSTSG6G6
TrimV6V8STS-VGTGXP
Body4dr Sedan4dr Sedan4dr Sedan4dr Sedan4dr Sedan
Engine254hp V6320hp V8469hp V8219hp V6252hp V6
TransmissionT5T5T6T4T6
DrivetrainRWDRWDRWDFWDFWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG/ MPG/ MPG
Audio (watts, speakers)?, 8?, 8300, 15200, 8200, 8
Tire (rear if not all the same)235/50-17235/50-17255/45-18225/50-18225/50-18
Total Price$45,680$48,340$77,190$28,945$30,760
Adjustments for Features-2,410-310-6,4650-400
Feature-Adjusted Total Price$43,270$48,030$70,725$28,945$30,360
Cost Above Minimum$0$4,760$27,455$0$1,415
Total Invoice$41,934$44,759$71,603$26,919$28,931
Adjustments for Features-2,212-287-5,9970-376
Feature-Adjusted Total Invoice$39,722$44,472$65,606$26,919$28,555
Cost Above Minimum$0$4,750$25,884$0$1,636

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Features Comparison: Cadillac STS vs. Pontiac G6

Model Year20062006200620092009
ModelSTSSTSSTSG6G6
TrimV6V8STS-VGTGXP
Body4dr Sedan4dr Sedan4dr Sedan4dr Sedan4dr Sedan
Transmission and Drivetrain 
5-speed manually-shiftable automatic$1000$1000   
6-speed manually-shiftable automatic  $1100 $1100
4-speed manually-shiftable automatic   $900 
RWD$0$0$0  
FWD   $0$0
Accessories 
Heated steering wheel  $100  
Proximity key$250$250$250  
Tilt/telescoping steering wheel, manual   $250$250
Tilt/telescoping steering wheel, power$350$350$350  
Universal garage door opener  $100  
Brakes, Airbags, and Other Safety 
Brake assist$50$50$50  
Obstacle detection, rear$250$250$250  
Tires, run-flat  $150  
Cargo Management 
Cargo net  $40$40$40
Rear seat pass-through$100$100$100  
Climate Control 
Automatic climate control, front$200$200$200 $200
Dual-zone climate control$125$125$125  
Heated windshield washer nozzles  $15  
Interior air filter$0 $0  
Rain-sensing wipers$175 $175  
Rear air vents$100$100   
Rear air vents with manual controls  $150  
Variable intermittent wipers $75 $75$75
Drivetrain 
Limited-slip rear differential  $300  
Exterior 
Body kit   $0$0
Laminated front side windows$200$200$200  
Rear spoiler  $200$200$200
Sunroof$900 $900$900$900
Infotainment 
Aux input   $50$50
Bluetooth cell phone link  $100  
CD changer, in-dash$325 $325$325$325
CD player $125   
DVD-compatible player  $0  
Navigation system  $600  
Satellite radio   $200$200
Surround sound  $250  
Voice control for nav and audio  $100  
Instruments, Lights, and Mirrors 
Auto-dimming driver-side mirror$75$75$75  
Auto-dimming headlights  $200  
Compass$0$0 $0$0
Headlight washers  $50  
Heated mirrors$25$25$25  
Turn signals on or near mirrors$25$25$25  
Xenon HID headlights  $500  
Seats and Interior Trim 
Aluminum trim $100   
Center armrest(s), second row$50$50$50  
Folding second row seats   $300$300
Heated front seats$200 $200$200$200
Heated second row seats  $200  
Manual lumbar adjuster, driver seat   $50$50
Memory system, driver seat$200 $200  
Power 4-way lumbar adjuster, driver seat$150 $150  
Power 4-way lumbar adjuster, passenger seat$150 $150  
Power fore-aft adjuster, passenger seat$100$100$100  
Power height adjuster, passenger seat$100$100$100  
Power recliner, driver seat$100$100$100  
Power recliner, passenger seat$100$100$100  
Power tilt adjuster, passenger seat$100$100$100  
Synthetic suede inserts in leather seating surfaces  $0  
Upholstered instrument panel, leather  $1000  
Wood trim$300 $300  
Suspension, Wheels, and Tires 
Alloy wheels $350   
Auto-leveling rear shocks$200$200$200  
Machined alloy wheels   $350 
Performance steering system (optional)  $0$0$0
Polished alloy wheels$350 $350 $350
Sport suspension (upgrade)  $0$0$0
Total Value of Features$6,250$4,150$10,305$3,840$4,240
Value of Feature Adjustments$2,410$310$6,465$0$400
Value of Feature Adjustments-2,212-287-5,9970-376

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Specifications Comparison: Cadillac STS vs. Pontiac G6

Model Year20062009
ModelSTSG6
Body4dr Sedan4dr Sedan
Wheelbase116.4 in112.3 in
Length196.3 in189.1 in
Width72.6 in70.6 in
Height57.6 in57.0 in
Curb Weight3,961 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
Cadillac STS V6

Preferred Equipment Group 1SB
FeatureValueRequested?
Wood trim300No
Heated front seats200Yes
CD changer, in-dash200Yes
Power 4-way lumbar adjuster, driver seat150No
Power 4-way lumbar adjuster, passenger seat150No
Rain-sensing wipers100No
Memory system, driver seat200No
Interior air filter0No
Polished alloy wheels0No
Total Requested40031%
Total Not Requested90069%

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 wheels250No
Total Requested110081%
Total Not Requested25019%

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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