Cadillac STS Cadillac STS 2010 Audi A6 / S6 Audi A6 / S6 2008

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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: $57,455

Audi A6 / S6 A6 3.2   
Difference: $12,155

Lowest Total Invoice: $53,490

Audi A6 / S6 A6 3.2   
Difference: $12,337

Calculate Payments

  Down Payment Interest Rate Term
Model Year2010200820082008
ModelSTSA6 / S6A6 / S6A6 / S6
TrimV8 PerformanceA6 3.2A6 4.2S6
Body4dr Sedan4dr Sedan4dr Sedan4dr Sedan
Base Price $68,785 $42,950 $56,300 $72,350
Base Invoice $65,002 $39,943 $52,361 $67,285
Premium Package   3,550    
Technology Package   4,100 3,450 3,350
Cold Weather Package   600 600  
245/40YR18   1,180 1,180  
Sport suspension (upgrade)   500 500  
Laminated front side windows   900 900 900
Lane departure warning   900 900 900
Adaptive cruise control   2,000 2,000 2,000
Heated second row seats       225
Premium Package   3,302    
Technology Package   3,813 3,208 3,115
Cold Weather Package   557 557  
245/40YR18   1,098 1,098  
Sport suspension (upgrade)   466 466  
Laminated front side windows   838 838 838
Lane departure warning   838 838 838
Adaptive cruise control   1,860 1,860 1,860
Heated second row seats       209
Options (change) 0 13,730 9,530 7,375
Options (change) 0 12,772 8,865 6,860
Destination 825 775 775 775
Gas Tax 0 0 0 1,300
Total Price $69,610 $57,455 $66,605 $81,800
Total Invoice $65,827 $53,490 $62,001 $76,220

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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 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: $11,585
TrueDelta Adjusted Invoice Difference: $11,798
Model Year2010200820082008
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$57,455$66,605$81,800
Adjustments for Features-5700-1,950-1,775
Feature-Adjusted Total Price$69,040$57,455$64,655$80,025
Cost Above Minimum$0$0$7,200$22,570
Total Invoice$65,827$53,490$62,001$76,220
Adjustments for Features-5390-1,815-1,654
Feature-Adjusted Total Invoice$65,288$53,490$60,186$74,566
Cost Above Minimum$0$0$6,696$21,076

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Features Comparison: Cadillac STS vs. Audi A6 / S6

Model Year2010200820082008
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$100$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   
Full-size spare tire $225$225$225
Rearview camera $200$200$200
Temporary spare tire$150   
Cargo Management 
Cargo mat $40$40$40
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 
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   
Interior ambient lighting $150$150$150
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 door panel trim  $250$250
Leather-wrapped steering wheel $150$150$150
Manual thigh support length adjuster, driver seat   $50
Wood/leather-wrapped steering wheel$150   
Suspension, Wheels, and Tires 
Adaptive dampers - electrical$500   
Alloy wheels   $350
Chrome-plated alloy wheels $850$850 
Polished alloy wheels$350   
Transmission 
Steering-wheel-mounted transmission controls   $100
Total Value of Features$4,850$4,280$6,230$6,055
Value of Feature Adjustments$570$0$1,950$1,775
Value of Feature Adjustments-5390-1,815-1,654

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Specifications Comparison: Cadillac STS vs. Audi A6 / S6

Model Year20102008
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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Option Package Details
Audi A6 / S6 A6 3.2

245/40YR18 tires
FeatureValueRequested?
245/40YR18 tires400No
Chrome-plated alloy wheels500No
Total Requested00%
Total Not Requested900100%
Premium Package
FeatureValueRequested?
Bose, 330W, 13 speakers (with subwoofer)350No
Heated front seats200Yes
Sunroof900Yes
Auto-dimming rearview mirror150Yes
Xenon HID headlights500Yes
Memory system, driver seat200Yes
Auto-dimming driver-side mirror75Yes
Compass0No
Surround sound250Yes
Storage compartment under front seat(s)50No
Power-folding mirrors50No
Auto-dimming passenger-side mirror75No
Total Requested227581%
Total Not Requested52519%
Technology Package
FeatureValueRequested?
Navigation system600Yes
Tilt/telescoping steering wheel, power100Yes
Universal garage door opener100Yes
Steering-linked headlights150No
Obstacle detection, rear250Yes
Rearview camera200No
Proximity key250Yes
Voice control for nav and audio100Yes
Total Requested140080%
Total Not Requested35020%
Cold Weather Package
FeatureValueRequested?
Heated second row seats200Yes
Rear seat pass-through100Yes
Heated steering wheel100Yes
Ski sack50No
Total Requested40089%
Total Not Requested5011%

Option Package Details
Audi A6 / S6 A6 4.2

245/40YR18 tires
FeatureValueRequested?
245/40YR18 tires400No
Chrome-plated alloy wheels500No
Total Requested00%
Total Not Requested900100%
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
Heated steering wheel100Yes
Ski sack50No
Total Requested40089%
Total Not Requested5011%

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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