Cadillac STS Cadillac STS 2011 Audi A6 / S6 Audi A6 / S6 2013

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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: $58,805

Cadillac STS Premium   
Difference: $2,265

Lowest Total Invoice: $55,518

Cadillac STS Premium   
Difference: $1,341

Calculate Payments

  Down Payment Interest Rate Term
Model Year201120132013
ModelSTSA6 / S6A6 / S6
TrimPremiumA6 3.0TS6 4.0 TFSI
Body4dr Sedan4dr Sedan4dr Sedan
Base Price $56,380 $50,400 $71,900
Base Invoice $53,279 $46,872 $66,868
Sunroof 1,200    
Temporary spare tire 350    
Prestige Package   6,550  
20-inch Sport Package   2,300  
Cold Weather Package   450 450
Metallic paint (extra cost)   475 475
Sunroof 1,056    
Temporary spare tire 308    
Prestige Package   6,091  
20-inch Sport Package   2,140  
Cold Weather Package   418 419
Metallic paint (extra cost)   443 443
Options (change) 1,550 9,775 925
Options (change) 1,364 9,092 862
Destination 875 895 895
Total Price $58,805 $61,070 $73,720
Total Invoice $55,518 $56,859 $68,625

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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.

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

Lowest Adjusted Price and Invoice: Audi A6 / S6 A6 3.0T
TrueDelta Adjusted Price Difference: $815
TrueDelta Adjusted Invoice Difference: $1,527
Model Year201120132013
ModelSTSA6 / S6A6 / S6
TrimPremiumA6 3.0TS6 4.0 TFSI
Body4dr Sedan4dr Sedan4dr Sedan
Engine302hp V6310hp V6420hp V8
TransmissionT6T8S7
DrivetrainRWDAWDAWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG
Audio (watts, speakers)300, 15630, 14630, 14
Tire (rear if not all the same)235/50-18245/45-18255/40-19
Total Price$58,805$61,070$73,720
Adjustments for Features0-3,080-5,105
Feature-Adjusted Total Price$58,805$57,990$68,615
Cost Above Minimum$0$0$10,625
Total Invoice$55,518$56,859$68,625
Adjustments for Features0-2,868-4,752
Feature-Adjusted Total Invoice$55,518$53,991$63,873
Cost Above Minimum$0$0$9,882

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Features Comparison: Cadillac STS vs. Audi A6 / S6

Model Year201120132013
ModelSTSA6 / S6A6 / S6
TrimPremiumA6 3.0TS6 4.0 TFSI
Body4dr Sedan4dr Sedan4dr Sedan
Transmission and Drivetrain 
6-speed manually-shiftable automatic$1100  
8-speed manually-shiftable automatic $1300 
7-speed automated manual  $1200
RWD$0  
AWD $1700$1700
Accessories 
Remote start$150  
Brakes, Airbags, and Other Safety 
Knee airbag, driver $75$75
Knee airbag, passenger $75$75
Obstacle detection, front $150$150
Rearview camera $200$200
Rollover sensor $50$50
Climate Control 
Heated windshield washer nozzles $15$15
Rain-sensing wipers $175$175
Rear air vents with automatic controls $250$250
Rear air vents with manual controls$150  
Rear dual-zone climate control $125$125
Residual heat $50$50
Variable intermittent wipers$75  
Drivetrain 
Active rear differential  $500
Limited-slip rear differential$300  
Engine / Motor 
Automatic start / stop $150 
Dual-mode exhaust, switchable  $500
Regenerative braking $0$0
Exterior 
Body kit $0$0
Laminated front side windows$200  
Rear spoiler$200  
Infotainment 
Aux input $50$50
Bluetooth audio streaming $25$25
CD changer, in-dash$325  
CD player $125$125
Handwriting recognition $200$200
HD radio $50$50
In-vehicle Internet $150$150
iPod integration $100$100
Media drive $15$15
MP3-compatible player $50$50
Rear seat audio controls$25  
Telematics service, such as OnStar, with navigation$225  
Traffic + travel information $25$25
Wi-Fi hotspot $50$50
Instruments, Lights, and Mirrors 
Auto-dimming headlights$200  
Auto-dimming passenger-side mirror $75$75
Compass $0$0
Cornering lights $50$50
Fog light, rear $100$100
Fog lights$125  
Headlight washers$50  
Interior ambient lighting $150$150
Mirror tilt-down in reverse $25$25
Steering-linked headlights $150$150
Seats and Interior Trim 
Cooled or ventilated front seats$300$300 
Door sill trim plates$100  
Folding second row seats $300$300
Illuminated door sill trim plates $200$200
Leather-wrapped steering wheel $150$150
Metal pedals  $75
Wood/leather-wrapped steering wheel$150  
Suspension, Wheels, and Tires 
Adaptive dampers - electrical  $500
Air suspension, auto-leveling and height adjustable  $1000
Alloy wheels  $350
Auto-leveling rear shocks$200  
Electronic systems calibration selector $200$200
Polished alloy wheels$350$350 
Transmission 
Steering-wheel-mounted transmission controls $100$100
Total Value of Features$4,225$7,305$9,330
Value of Feature Adjustments$0$3,080$5,105
Value of Feature Adjustments0-2,868-4,752

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Specifications Comparison: Cadillac STS vs. Audi A6 / S6

Model Year20112013
ModelSTSA6 / S6
Body4dr Sedan4dr Sedan
Wheelbase116.4 in114.7 in
Length196.7 in193.9 in
Width72.6 in73.8 in
Height57.6 in57.8 in
Curb Weight3,974 lb.3,727 lb.
Fuel Capacity17.0 gal.19.8 gal.
Row 1 Headroom38.7 in37.2 in
Row 1 Shoulder Room58.6 in57.5 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 in56.3 in
Row 2 Hip Room55.6 in0.0 in
Row 2 Legroom38.3 in37.4 in
Cargo Volume13.8 ft314.1 ft3

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Option Package Details
Audi A6 / S6 A6 3.0T

Prestige Package
FeatureValueRequested?
Cooled or ventilated front seats300Yes
Bose, 630W, 14 speakers (with subwoofer)350No
Navigation system600Yes
Handwriting recognition200No
Xenon HID headlights500Yes
Obstacle detection, front150No
Obstacle detection, rear250Yes
Rearview camera200No
Auto-dimming driver-side mirror75Yes
DVD-compatible player0Yes
Proximity key250Yes
Voice control for nav and audio100Yes
Auto-dimming passenger-side mirror75No
HD radio50No
Media drive, large15No
Traffic + travel information25No
In-vehicle Internet150No
Wi-Fi hotspot50No
245/45HR18 tires400No
Tilt/telescoping steering wheel, power100Yes
Steering-linked headlights150No
Body kit0No
Surround sound250Yes
Interior lights, additional0No
Cornering lights50No
Sport front fascia (optional)0No
Rear dual-zone climate control125No
Sport rear fascia, e.g. diffuser (optional)0No
Illuminated door sill trim plates100No
Total Requested242554%
Total Not Requested209046%
20-inch Sport Package
FeatureValueRequested?
Sport suspension (upgrade)250Yes
Polished alloy wheels350Yes
Steering-wheel-mounted transmission controls100No
255/35YR20 tires400No
Total Requested60055%
Total Not Requested50045%
Cold Weather Package
FeatureValueRequested?
Heated second row seats200Yes
Heated steering wheel100Yes
Total Requested300100%
Total Not Requested00%

Option Package Details
Audi A6 / S6 S6 4.0 TFSI

Cold Weather Package
FeatureValueRequested?
Heated second row seats200Yes
Heated steering wheel100Yes
Total Requested300100%
Total Not Requested00%

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