Cadillac STS Cadillac STS 2006 Mazda Mazda6 Mazda Mazda6 2009

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Cadillac STS vs. Mazda Mazda6 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. Mazda Mazda6 Invoice Comparison

Lowest Total Price: $30,330

Mazda Mazda6 i   
Difference: $19,695

Lowest Total Invoice: $27,189

Mazda Mazda6 i   
Difference: $18,352

Calculate Payments

  Down Payment Interest Rate Term
Model Year20062006200620092009
ModelSTSSTSSTSMazda6Mazda6
TrimV6V8STS-Vis
Body4dr Sedan4dr Sedan4dr Sedan4dr Sedan4dr Sedan
Base Price $41,020 $47,520 $73,070 $18,550 $24,330
Base Invoice $37,944 $43,956 $67,704 $17,601 $22,482
Preferred Equipment Group 1SC 8,285        
Preferred Equipment Group 1SF   10,740      
Sunroof     1,200    
Grand Touring Package       6,560 4,135
215/55VR17       0  
Moonroof and Bose Package       1,760 1,760
Navigation system       2,000 2,000
Cargo net       40 40
Remote start       350 350
Rear spoiler       400 400
235/45WR18         0
Preferred Equipment Group 1SC 6,877        
Preferred Equipment Group 1SF   8,914      
Sunroof     996    
Grand Touring Package       5,598 3,806
215/55VR17       0  
Moonroof and Bose Package       1,408 1,408
Navigation system       1,600 1,600
Cargo net       32 32
Remote start       280 280
Rear spoiler       0 0
235/45WR18         0
Options (change) 8,285 10,740 1,200 11,110 8,685
Options (change) 6,877 8,914 996 8,918 7,126
Destination 720 720 720 670 670
Gas Tax 0 0 2,100 0 0
Total Price $50,025 $58,980 $77,090 $30,330 $33,685
Total Invoice $45,541 $53,590 $71,520 $27,189 $30,278

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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 Mazda Mazda6 dealer quotes from dealers using our car quote form.

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TrueDelta Value Comparison: Cadillac STS vs. Mazda Mazda6

Lowest Adjusted Price and Invoice: Mazda Mazda6 i
TrueDelta Adjusted Price Difference: $17,375
TrueDelta Adjusted Invoice Difference: $16,240
Model Year20062006200620092009
ModelSTSSTSSTSMazda6Mazda6
TrimV6V8STS-Vis
Body4dr Sedan4dr Sedan4dr Sedan4dr Sedan4dr Sedan
Engine254hp V6320hp V8469hp V8170hp I4272hp V6
TransmissionT5T5T6M6T6
DrivetrainRWDRWDRWDFWDFWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG/ MPG/ MPG
Audio (watts, speakers)300, 15300, 15300, 15333, 10333, 10
Tire (rear if not all the same)235/50-17235/50-17255/45-18215/55-17235/45-18
Total Price$50,025$58,980$77,090$30,330$33,685
Adjustments for Features-2,320-3,570-4,0350-950
Feature-Adjusted Total Price$47,705$55,410$73,055$30,330$32,735
Cost Above Minimum$0$7,705$25,350$0$2,405
Total Invoice$45,541$53,590$71,520$27,189$30,278
Adjustments for Features-2,112-3,244-3,7430-854
Feature-Adjusted Total Invoice$43,429$50,346$67,777$27,189$29,424
Cost Above Minimum$0$6,917$24,348$0$2,235

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Features Comparison: Cadillac STS vs. Mazda Mazda6

Model Year20062006200620092009
ModelSTSSTSSTSMazda6Mazda6
TrimV6V8STS-Vis
Body4dr Sedan4dr Sedan4dr Sedan4dr Sedan4dr Sedan
Transmission and Drivetrain 
5-speed manually-shiftable automatic$1000$1000   
6-speed manually-shiftable automatic  $1100 $1100
6-speed manual   $150 
RWD$0$0$0  
FWD   $0$0
Accessories 
Heated steering wheel$100$100$100  
Remote window/roof operation   $15$15
Tilt/telescoping steering wheel, manual   $250$250
Tilt/telescoping steering wheel, power$350$350$350  
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats   $0$0
Blind spot warning system   $200$200
Brake assist$50$50$50  
Obstacle detection, rear$250$250$250  
Tires, run-flat  $150  
Cargo Management 
Cargo mat   $40$40
Overhead sunglass holder   $25$25
Rear seat pass-through$100$100$100  
Climate Control 
Heated windshield washer nozzles  $15  
Rear air vents with manual controls$150$150$150  
Drivetrain 
Limited-slip rear differential$300$300$300  
Exterior 
Laminated front side windows$200$200$200  
Infotainment 
Aux input   $50$50
DVD-compatible player$0$0$0  
MP3-compatible player   $50$50
Satellite radio   $200$200
Telematics service, such as OnStar$200$200$200  
Instruments, Lights, and Mirrors 
Auto-dimming headlights $200$200  
Auto-dimming passenger-side mirror   $75$75
Compass   $0$0
Headlight washers $50$50  
Turn signals on or near mirrors$25$25$25  
Xenon HID headlights $500$500$500$500
Seats and Interior Trim 
Cooled or ventilated front seats$300$300   
Folding second row seats   $300$300
Heated second row seats$200$200$200  
Leather-wrapped steering wheel  $150$150$150
Manual lumbar adjuster, driver seat   $50$50
Power 4-way lumbar adjuster, driver seat$150$150$150  
Power 4-way lumbar adjuster, passenger seat$150$150$150  
Power height adjuster, 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$300  
Wood/leather-wrapped steering wheel$150$150   
Suspension, Wheels, and Tires 
Adaptive dampers - electrical $500   
Alloy wheels   $350$350
Auto-leveling rear shocks$200$200$200  
Performance steering system (optional)$0 $0  
Polished alloy wheels$350$350$350  
Sport suspension (upgrade)$0$0$0  
Total Value of Features$4,725$5,975$6,440$2,405$3,355
Value of Feature Adjustments$2,320$3,570$4,035$0$950
Value of Feature Adjustments-2,112-3,244-3,7430-854

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Specifications Comparison: Cadillac STS vs. Mazda Mazda6

Model Year20062009
ModelSTSMazda6
Body4dr Sedan4dr Sedan
Wheelbase116.4 in109.8 in
Length196.3 in193.7 in
Width72.6 in72.4 in
Height57.6 in57.9 in
Curb Weight3,961 lb.3,259 lb.
Fuel Capacity17.0 gal.18.5 gal.
Row 1 Headroom38.7 in39.4 in
Row 1 Shoulder Room58.6 in57.3 in
Row 1 Hip Room54.6 in55.1 in
Row 1 Legroom42.6 in42.5 in
Row 2 Headroom37.9 in37.3 in
Row 2 Shoulder Room57.4 in56.5 in
Row 2 Hip Room55.6 in55.9 in
Row 2 Legroom38.3 in38.0 in
Cargo Volume13.8 ft316.6 ft3

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Option Package Details
Cadillac STS V6

Preferred Equipment Group 1SC
FeatureValueRequested?
Sport suspension (upgrade)250No
Performance braking system (optional)250No
Cooled or ventilated front seats300No
Sunroof900Yes
Limited-slip rear differential300No
Rear spoiler200Yes
Wood/leather-wrapped steering wheel0No
Performance steering system (optional)250No
CD changer, in-dash200Yes
Power 4-way lumbar adjuster, driver seat150No
Power 4-way lumbar adjuster, passenger seat150No
Rain-sensing wipers100Yes
Memory system, driver seat200Yes
Interior air filter0Yes
Polished alloy wheels0No
Wood trim300No
Heated front seats200Yes
Universal garage door opener100Yes
Bluetooth cell phone link100Yes
Heated steering wheel100No
Cargo net40Yes
Surround sound250Yes
DVD-compatible player0No
Voice control for nav and audio100Yes
Rear air vents with manual controls50No
Navigation system600Yes
Heated second row seats200No
Bose, 300W, 15 speakers (with subwoofer)350No
Total Requested299053%
Total Not Requested265047%

Option Package Details
Cadillac STS V8

Preferred Equipment Group 1SF
FeatureValueRequested?
Sport suspension (upgrade)250No
Adaptive shocks - electrical500No
Cooled or ventilated front seats300No
Sunroof900Yes
Limited-slip rear differential300No
Rain-sensing wipers100Yes
Xenon HID headlights500Yes
Rear spoiler200Yes
Wood/leather-wrapped steering wheel0No
Bluetooth cell phone link100Yes
Headlight washers50No
235/50VR17 tires200No
255/45VR17 tires200No
Auto-dimming headlights200No
Universal garage door opener100Yes
Heated steering wheel100No
Interior air filter0Yes
Cargo net40Yes
Surround sound250Yes
DVD-compatible player0No
Voice control for nav and audio100Yes
Rear air vents with manual controls50No
Navigation system600Yes
Heated second row seats200No
Bose, 300W, 15 speakers (with subwoofer)350No
CD changer, in-dash200Yes
Power 4-way lumbar adjuster, driver seat150No
Power 4-way lumbar adjuster, passenger seat150No
Memory system, driver seat200Yes
Polished alloy wheels0No
Wood trim300No
Heated front seats200Yes
Total Requested349051%
Total Not Requested330049%

Option Package Details
Mazda Mazda6 i

Navigation system
FeatureValueRequested?
Navigation system600Yes
Voice control for nav and audio100Yes
Total Requested700100%
Total Not Requested00%
Grand Touring Package
FeatureValueRequested?
Leather seating surfaces900Yes
Heated mirrors25Yes
Heated front seats200Yes
Power recliner, passenger seat100Yes
Power fore-aft adjuster, passenger seat100Yes
Universal garage door opener100Yes
Auto-dimming rearview mirror150Yes
Memory system, driver seat200Yes
Auto-dimming driver-side mirror75Yes
Compass0No
Auto-dimming passenger-side mirror75No
Proximity key250Yes
Power fore-aft adjuster, driver seat100Yes
Power height adjuster, driver seat50Yes
Power tilt adjuster, driver seat100Yes
Power recliner, driver seat100Yes
Manual lumbar adjuster, driver seat50Yes
Trip computer150Yes
Fog lights125Yes
Alloy wheels350Yes
Alarm100No
Upgraded instruments0No
Automatic climate control, front200Yes
Rain-sensing wipers100Yes
Automatic headlights100Yes
Xenon HID headlights500Yes
Bluetooth cell phone link100Yes
Dual-zone climate control125Yes
Perimeter approach lighting25No
Blind spot warning system200No
Interior ambient lighting150No
Cruise control150Yes
Remote keyless entry225Yes
Remote window/roof operation15No
Aux input50No
Total Requested462588%
Total Not Requested61512%
Moonroof and Bose Package
FeatureValueRequested?
Sunroof900Yes
CD changer, in-dash200Yes
Satellite radio200No
Bluetooth cell phone link100Yes
MP3-compatible player50No
Surround sound250Yes
Bose, 333W, 10 speakers (with subwoofer)350No
Total Requested145071%
Total Not Requested60029%

Option Package Details
Mazda Mazda6 s

Navigation system
FeatureValueRequested?
Navigation system600Yes
Voice control for nav and audio100Yes
Total Requested700100%
Total Not Requested00%
Grand Touring Package
FeatureValueRequested?
Leather seating surfaces900Yes
Heated mirrors25Yes
Heated front seats200Yes
Power recliner, passenger seat100Yes
Power fore-aft adjuster, passenger seat100Yes
Universal garage door opener100Yes
Auto-dimming rearview mirror150Yes
Memory system, driver seat200Yes
Auto-dimming driver-side mirror75Yes
Compass0No
Auto-dimming passenger-side mirror75No
Proximity key250Yes
Power fore-aft adjuster, driver seat100Yes
Power height adjuster, driver seat50Yes
Power tilt adjuster, driver seat100Yes
Power recliner, driver seat100Yes
Manual lumbar adjuster, driver seat50Yes
Trip computer150Yes
Fog lights125Yes
Alarm100No
Upgraded instruments0No
Automatic climate control, front200Yes
Rain-sensing wipers100Yes
Automatic headlights100Yes
Xenon HID headlights500Yes
Bluetooth cell phone link100Yes
Dual-zone climate control125Yes
Perimeter approach lighting25No
Blind spot warning system200No
Interior ambient lighting150No
Total Requested390088%
Total Not Requested55012%
Moonroof and Bose Package
FeatureValueRequested?
Sunroof900Yes
CD changer, in-dash200Yes
Satellite radio200No
Bluetooth cell phone link100Yes
MP3-compatible player50No
Surround sound250Yes
Bose, 333W, 10 speakers (with subwoofer)350No
Total Requested145071%
Total Not Requested60029%

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