Pontiac G6 Pontiac G6 2006 Cadillac STS Cadillac STS 2009

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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: $27,730

Pontiac G6 GTP   
Difference: $20,755

Lowest Total Invoice: $25,776

Pontiac G6 GTP   
Difference: $19,471

Calculate Payments

  Down Payment Interest Rate Term
Model Year2006200920092009
ModelG6STSSTSSTS
TrimGTPV6V8STS-V
Body4dr Sedan4dr Sedan4dr Sedan4dr Sedan
Base Price $23,065 $46,410 $55,910 $80,160
Base Invoice $21,796 $43,393 $52,276 $73,448
Premium Value Package 2 1,150      
Leather Seat Package (GTP) 1,265      
Side curtain airbags 690      
Telematics service, such as OnStar 695      
Remote start 190      
Engine-block heater 50 100 100 100
Sunroof   1,200   1,200
Premium Value Package 2 955      
Leather Seat Package (GTP) 1,050      
Side curtain airbags 573      
Telematics service, such as OnStar 577      
Remote start 158      
Engine-block heater 42 83 83 83
Sunroof   996   996
Options (change) 4,040 1,300 100 1,300
Options (change) 3,355 1,079 83 1,079
Destination 625 775 775 775
Gas Tax 0 0 0 2,100
Total Price $27,730 $48,485 $56,785 $84,335
Total Invoice $25,776 $45,247 $53,134 $77,402

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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 GTP
TrueDelta Adjusted Price Difference: $19,270
TrueDelta Adjusted Invoice Difference: $18,085
Model Year2006200920092009
ModelG6STSSTSSTS
TrimGTPV6V8STS-V
Body4dr Sedan4dr Sedan4dr Sedan4dr Sedan
Engine240hp V6302hp V6320hp V8469hp V8
TransmissionT4T6T6T6
DrivetrainFWDRWDRWDRWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG/ MPG
Audio (watts, speakers)200, 8?, 8?, 8300, 15
Tire (rear if not all the same)225/50-18235/50-17235/50-17255/45-18
Total Price$27,730$48,485$56,785$84,335
Adjustments for Features0-1,485-2,425-7,465
Feature-Adjusted Total Price$27,730$47,000$54,360$76,870
Cost Above Minimum$0$0$7,360$29,870
Total Invoice$25,776$45,247$53,134$77,402
Adjustments for Features0-1,386-2,269-6,851
Feature-Adjusted Total Invoice$25,776$43,861$50,865$70,551
Cost Above Minimum$0$0$7,004$26,690

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Features Comparison: Pontiac G6 vs. Cadillac STS

Model Year2006200920092009
ModelG6STSSTSSTS
TrimGTPV6V8STS-V
Body4dr Sedan4dr Sedan4dr Sedan4dr Sedan
Transmission and Drivetrain 
4-speed manually-shiftable automatic$900   
6-speed manually-shiftable automatic $1100$1100$1100
FWD$0   
RWD $0$0$0
Accessories 
Heated steering wheel  $100$100
Proximity key $250$250$250
Tilt/telescoping steering wheel, manual$250   
Tilt/telescoping steering wheel, power $350$350$350
Universal garage door opener  $100$100
Brakes, Airbags, and Other Safety 
Blind spot warning system   $200
Brake assist $50$50$50
Lane departure warning   $200
Obstacle detection, rear $250$250$250
Tire-pressure monitor $75$75$75
Tires, run-flat   $150
Cargo Management 
Cargo net$40 $40$40
Rear seat pass-through $100$100$100
Climate Control 
Dual-zone climate control $125$125$125
Heated windshield washer nozzles   $15
Interior air filter $0$0$0
Rain-sensing wipers  $175$175
Rear air vents with manual controls $150$150$150
Variable intermittent wipers$75$75  
Drivetrain 
Limited-slip rear differential   $300
Exterior 
Bodyside moldings$75   
Laminated front side windows $200$200$200
Rear spoiler$200  $200
Sunroof$900$900 $900
Infotainment 
Bluetooth cell phone link $100$100$100
CD changer, in-dash$325 $325$325
CD player $125  
DVD-compatible player   $0
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$225$225
Voice control for nav and audio   $100
Instruments, Lights, and Mirrors 
Auto-dimming driver-side mirror $75$75$75
Auto-dimming headlights   $200
Auto-dimming rearview mirror $150$150$150
Compass $0$0 
Head-up display (HUD)   $350
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   
Heated front seats$200 $200$200
Heated second row seats  $200$200
Leather-wrapped steering wheel$150$150 $150
Manual lumbar adjuster, driver seat$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
Wood/leather-wrapped steering wheel  $150 
Suspension, Wheels, and Tires 
Alloy wheels   $350
Auto-leveling rear shocks  $200$200
Performance steering system (optional)$0  $0
Polished alloy wheels$350$350$350 
Sport suspension (upgrade)$0  $0
Total Value of Features$4,015$5,500$6,440$11,480
Value of Feature Adjustments$0$1,485$2,425$7,465
Value of Feature Adjustments0-1,386-2,269-6,851

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Specifications Comparison: Pontiac G6 vs. Cadillac STS

Model Year20062009
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 Weight3,421 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 GTP

Premium Value Package 2
FeatureValueRequested?
Sunroof900Yes
CD changer, in-dash325Yes
Polished alloy wheels0Yes
Total Requested1225100%
Total Not Requested00%
Leather Seat Package (GTP)
FeatureValueRequested?
Leather seating surfaces900Yes
Audio controls on steering wheel125Yes
Heated front seats200Yes
Leather-wrapped steering wheel150Yes
Total Requested1375100%
Total Not Requested00%

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