Cadillac STS Cadillac STS 2010 Audi A6 / S6 Audi A6 / S6 2007
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Cadillac STS vs. Audi A6 / S6 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. Audi A6 / S6 Invoice Comparison

Lowest Total Price: $55,310

Audi A6 / S6 A6 3.2   
Difference: $14,300

Lowest Total Invoice: $50,824

Audi A6 / S6 A6 3.2   
Difference: $15,003

Calculate Payments

  Down Payment Interest Rate Term
Model Year2010200720072007
ModelSTSA6 / S6A6 / S6A6 / S6
TrimV8 PerformanceA6 3.2A6 4.2S6
Body4dr Sedan4dr Sedan4dr Sedan4dr Sedan
Base Price $68,785 $41,950 $55,300 $72,000
Base Invoice $65,002 $38,600 $50,951 $66,148
Convenience Package   2,750    
Sunroof   1,450    
Bose 330W 13 speakers   0    
Technology Package   4,000 4,000 3,900
Cold Weather Package   550 550  
Adaptive cruise control   2,000 2,000 2,000
Wood/leather-wrapped steering wheel   690 690  
Polished alloy wheels   1,200 900  
Heated second row seats       225
Convenience Package   2,503    
Sunroof   1,320    
Bose 330W 13 speakers   0    
Technology Package   3,640 3,640 3,549
Cold Weather Package   501 501  
Adaptive cruise control   1,820 1,820 1,820
Wood/leather-wrapped steering wheel   628 628  
Polished alloy wheels   1,092 819  
Heated second row seats       205
Options (change) 0 12,640 8,140 6,125
Options (change) 0 11,504 7,408 5,574
Destination 825 720 720 720
Gas Tax 0 0 0 1,300
Total Price $69,610 $55,310 $64,160 $80,145
Total Invoice $65,827 $50,824 $59,079 $73,742

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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

Want to find out how much dealers are willing to discount these cars?

Request free, no-obligation Cadillac STS dealer quotes or Audi A6 / S6 dealer quotes from dealers using our car quote form.

The process is easy and takes just a minute or two. You'll receive price quotes from local approved dealers within 48 hours.

TrueDelta Value Comparison: Cadillac STS vs. Audi A6 / S6

Lowest Adjusted Price and Invoice: Audi A6 / S6 A6 3.2
TrueDelta Adjusted Price Difference: $12,565
TrueDelta Adjusted Invoice Difference: $13,362
Model Year2010200720072007
ModelSTSA6 / S6A6 / S6A6 / S6
TrimV8 PerformanceA6 3.2A6 4.2S6
Body4dr Sedan4dr Sedan4dr Sedan4dr Sedan
Engine320hp V8255hp V6350hp V8435hp V10
TransmissionT6CVT-7T6T6
DrivetrainRWDFWDAWDAWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG/ MPG
Audio (watts, speakers)300, 15330, 13330, 13330, 13
Tire (rear if not all the same)235/50-18245/40-18245/40-18265/35-19
Total Price$69,610$55,310$64,160$80,145
Adjustments for Features-1,7350-1,700-2,025
Feature-Adjusted Total Price$67,875$55,310$62,460$78,120
Cost Above Minimum$0$0$7,150$22,810
Total Invoice$65,827$50,824$59,079$73,742
Adjustments for Features-1,6410-1,565-1,863
Feature-Adjusted Total Invoice$64,186$50,824$57,514$71,879
Cost Above Minimum$0$0$6,690$21,055

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Features Comparison: Cadillac STS vs. Audi A6 / S6

Model Year2010200720072007
ModelSTSA6 / S6A6 / S6A6 / S6
TrimV8 PerformanceA6 3.2A6 4.2S6
Body4dr Sedan4dr Sedan4dr Sedan4dr Sedan
Transmission and Drivetrain 
6-speed manually-shiftable automatic$1100 $1100$1100
7-speed manually-shiftable CVT $1100  
RWD$0   
FWD $0  
AWD  $1700$1700
Accessories 
Heated steering wheel$100   
Remote start$150   
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats $0$0$0
Blind spot warning system$200   
Lane departure warning$200   
Rearview camera $200$200$200
Cargo Management 
Ski sack $50$50$50
Storage compartment under front seat(s) $50$50$50
Climate Control 
Heated windshield washer nozzles $15$15$15
Rain-sensing wipers $175$175$175
Rear air vents $100$100$100
Rear air vents with manual controls$150   
Residual heat $50$50$50
Variable intermittent wipers$75   
Drivetrain 
Limited-slip rear differential$300   
Exterior 
Bodyside cladding   $350
Bodyside moldings $75$75 
Laminated front side windows$200   
Rear spoiler$200   
Infotainment 
CD changer, in-dash$325   
CD changer, remote $200$200$200
DVD-compatible player$0   
MP3-compatible player $50$50$50
Rear seat audio controls$25   
Telematics service, such as OnStar, with navigation$225   
Instruments, Lights, and Mirrors 
Auto-dimming headlights$200   
Auto-dimming passenger-side mirror $75$75$75
Compass $0$0$0
Fog light, rear $100$100$100
Head-up display (HUD)$350   
Mirror tilt-down in reverse $25$25$25
Power-folding mirrors $50$50$50
Steering-linked headlights $150$150$150
Seats and Interior Trim 
Cooled or ventilated front seats$300   
Folding second row seats $300$300$300
Leather-wrapped steering wheel   $150
Manual thigh support length adjuster, driver seat   $50
Wood/leather-wrapped steering wheel$150$150$150 
Suspension, Wheels, and Tires 
Adaptive dampers - electrical$500   
Alloy wheels   $350
Polished alloy wheels$350$350$350 
Sport suspension (upgrade)$0  $0
Transmission 
Steering-wheel-mounted transmission controls $100$100$100
Total Value of Features$5,100$3,365$5,065$5,390
Value of Feature Adjustments$1,735$0$1,700$2,025
Value of Feature Adjustments-1,6410-1,565-1,863

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See a complete comparison of Cadillac STS vs. Audi A6 / S6 features.

Specifications Comparison: Cadillac STS vs. Audi A6 / S6

Model Year20102007
ModelSTSA6 / S6
Body4dr Sedan4dr Sedan
Wheelbase116.4 in111.9 in
Length196.7 in193.5 in
Width72.6 in73.1 in
Height57.6 in57.5 in
Curb Weight3,974 lb.4,013 lb.
Fuel Capacity17.0 gal.21.1 gal.
Row 1 Headroom38.7 in38.7 in
Row 1 Shoulder Room58.6 in57.1 in
Row 1 Hip Room54.6 in0.0 in
Row 1 Legroom42.6 in41.3 in
Row 2 Headroom37.9 in37.8 in
Row 2 Shoulder Room57.4 in55.9 in
Row 2 Hip Room55.6 in0.0 in
Row 2 Legroom38.3 in36.9 in
Cargo Volume13.8 ft315.9 ft3

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See a complete comparison of Cadillac STS vs. Audi A6 / S6 specs.

Option Package Details
Audi A6 / S6 A6 3.2

Sunroof
FeatureValueRequested?
Sunroof900Yes
Heated front seats200Yes
Total Requested1100100%
Total Not Requested00%
Wood/leather-wrapped steering wheel
FeatureValueRequested?
Wood/leather-wrapped steering wheel150Yes
Steering-wheel-mounted transmission controls100No
Total Requested15060%
Total Not Requested10040%
Polished alloy wheels
FeatureValueRequested?
Polished alloy wheels350Yes
245/40HR18 tires400No
Total Requested35047%
Total Not Requested40053%
Convenience Package
FeatureValueRequested?
Tilt/telescoping steering wheel, power100Yes
Universal garage door opener100Yes
Auto-dimming rearview mirror150Yes
Steering-linked headlights150No
Xenon HID headlights500Yes
Memory system, driver seat200Yes
Satellite radio200Yes
Auto-dimming driver-side mirror75Yes
Compass0No
Surround sound250Yes
Storage compartment under front seat(s)50No
Power-folding mirrors50No
Auto-dimming passenger-side mirror75No
Total Requested157583%
Total Not Requested32517%
Technology Package
FeatureValueRequested?
Navigation system600Yes
Satellite radio200Yes
Obstacle detection, rear250Yes
Rearview camera200No
Proximity key250Yes
Voice control for nav and audio100Yes
Total Requested140088%
Total Not Requested20012%
Cold Weather Package
FeatureValueRequested?
Heated second row seats200Yes
Rear seat pass-through100Yes
Headlight washers50Yes
Ski sack50No
Total Requested35088%
Total Not Requested5012%

Option Package Details
Audi A6 / S6 A6 4.2

Wood/leather-wrapped steering wheel
FeatureValueRequested?
Wood/leather-wrapped steering wheel150Yes
Steering-wheel-mounted transmission controls100No
Total Requested15060%
Total Not Requested10040%
Polished alloy wheels
FeatureValueRequested?
Polished alloy wheels350Yes
245/40HR18 tires400No
Total Requested35047%
Total Not Requested40053%
Technology Package
FeatureValueRequested?
Navigation system600Yes
Obstacle detection, rear250Yes
Rearview camera200No
Proximity key250Yes
Voice control for nav and audio100Yes
Total Requested120086%
Total Not Requested20014%
Cold Weather Package
FeatureValueRequested?
Heated second row seats200Yes
Rear seat pass-through100Yes
Headlight washers50Yes
Ski sack50No
Total Requested35088%
Total Not Requested5012%

Option Package Details
Audi A6 / S6 S6

Technology Package
FeatureValueRequested?
Navigation system600Yes
Obstacle detection, rear250Yes
Rearview camera200No
Proximity key250Yes
Voice control for nav and audio100Yes
Total Requested120086%
Total Not Requested20014%

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