Audi A6 / S6 Audi A6 / S6 2020 Cadillac STS Cadillac STS 2010
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Audi A6 / S6 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.

Audi A6 / S6 vs. Cadillac STS Invoice Comparison

Lowest Total Price: $70,605

Cadillac STS V8 Performance   
Difference: $11,265

Calculate Payments

  Down Payment Interest Rate Term
Model Year20202010
ModelA6 / S6STS
TrimS6V8 Performance
Body4dr Sedan4dr Sedan
Base Price $73,900 $68,785
Cold Weather Package 500  
Driver Assistance Package 2,000  
Sport Package 3,900  
Metallic paint (extra cost) 575  
Active steering   995
Cold Weather Package 467  
Driver Assistance Package 1,860  
Sport Package 3,628  
Metallic paint (extra cost) 536  
Active steering   876
Options (change) 6,975 995
Options (change) 6,491 876
Destination 995 825
Total Price $81,870 $70,605

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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 Audi A6 / S6 dealer quotes or Cadillac STS dealer quotes from dealers using our car quote form.

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

Lowest Adjusted Price: Cadillac STS V8 Performance
Lowest Adjusted Invoice: Audi A6 / S6 S6
TrueDelta Adjusted Price Difference: $4,960
TrueDelta Adjusted Invoice Difference: $59,794
Model Year20202010
ModelA6 / S6STS
TrimS6V8 Performance
Body4dr Sedan4dr Sedan
Engine444hp V6 H320hp V8
TransmissionT8T6
DrivetrainAWDRWD
EPA Fuel Economy (city/highway)/ MPG/ MPG
Audio (watts, speakers)630, 14300, 15
Tire (rear if not all the same)255/40-20235/50-18
Total Price$81,870$70,605
Adjustments for Features-6,3050
Feature-Adjusted Total Price$75,565$70,605

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Features Comparison: Audi A6 / S6 vs. Cadillac STS

Model Year20202010
ModelA6 / S6STS
TrimS6V8 Performance
Body4dr Sedan4dr Sedan
Transmission and Drivetrain 
8-speed manually-shiftable automatic$1300 
6-speed manually-shiftable automatic $1100
AWD$1700 
RWD $0
Accessories 
Adaptive cruise control $600
Adaptive cruise control, all-speed$850 
Remote start $150
Brakes, Airbags, and Other Safety 
Automatic braking, low-speed$200 
Collision preparation system, rear$100 
Forward collision warning$200 
Knee airbag, driver$75 
Knee airbag, passenger$75 
Lane departure prevention, steering-based$200 
Obstacle detection, front$150 
Radar- or camera-based collision preparation system$0 
Rearview camera$200 
Rollover sensor$50 
Secondary collision brake assist$25 
Climate Control 
Heated windshield washer nozzles$15 
Rain-sensing wipers$175 
Rear air vents with automatic controls$250 
Rear air vents with manual controls $150
Rear dual-zone climate control$125 
Residual heat$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 
Exterior 
Bright-finished exhaust tip(s) $25
Painted brake calipers (optional)$0 
Rear spoiler $200
Infotainment 
4G LTE connectivity$0 
Android Auto support$100 
Apple CarPlay support$100 
Aux input$50 
Bluetooth audio streaming$25 
CD changer, in-dash $325
CD player$125 
Handwriting recognition$200 
HD radio$50 
In-vehicle Internet$150 
Media drive$15 
MP3-compatible player$50 
Rear seat audio controls $25
SD Card slot$25 
Telematics service, such as OnStar, with navigation $225
Traffic + travel information$25 
USB port$25 
Wi-Fi hotspot$50 
Instruments, Lights, and Mirrors 
Auto-dimming passenger-side mirror$75 
Compass$0 
Fog light, rear$100 
Fog lights $125
Head-up display (HUD) $350
Headlight washers $50
Interior ambient lighting$150 
LED headlights$1000 
Mirror tilt-down in reverse$25 
Power-folding mirrors$50 
Xenon HID headlights $500
Seats and Interior Trim 
Cooled or ventilated front seats $300
Door sill trim plates $100
Folding second row seats$300 
Illuminated door sill trim plates$200 
Leather door panel trim$250 
Leather-wrapped steering wheel$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 
Electronic systems calibration selector$200 
Polished alloy wheels $350
Transmission 
Steering-wheel-mounted transmission controls$100 
Total Value of Features$11,905$5,600
Value of Feature Adjustments$6,305$0
Value of Feature Adjustments-5770

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

Specifications Comparison: Audi A6 / S6 vs. Cadillac STS

Model Year20202010
ModelA6 / S6STS
Body4dr Sedan4dr Sedan
Wheelbase115.1 in116.4 in
Length194.4 in196.7 in
Width74.3 in72.6 in
Height57.4 in57.6 in
Curb Weight4,102 lb.3,974 lb.
Fuel Capacity19.3 gal.17.0 gal.
Row 1 Headroom38.0 in38.7 in
Row 1 Shoulder Room57.8 in58.6 in
Row 1 Hip Room0.0 in54.6 in
Row 1 Legroom41.3 in42.6 in
Row 2 Headroom38.1 in37.9 in
Row 2 Shoulder Room56.5 in57.4 in
Row 2 Hip Room0.0 in55.6 in
Row 2 Legroom37.4 in38.3 in
Cargo Volume13.7 ft313.8 ft3

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

Option Package Details
Audi A6 / S6 S6

Cold Weather Package
FeatureValueRequested?
Heated second row seats200Yes
Heated steering wheel100Yes
Total Requested300100%
Total Not Requested00%
Driver Assistance Package
FeatureValueRequested?
Auto-dimming headlights200Yes
Radar- or camera-based collision preparation system0No
Lane departure warning200Yes
Adaptive cruise control, all-speed700No
Automatic braking, low-speed200No
Forward collision warning200No
Lane departure prevention, steering-based200No
Total Requested40024%
Total Not Requested130076%
Sport Package
FeatureValueRequested?
Active steering1000Yes
Sport exhaust0No
Active rear differential500No
Painted brake calipers (optional)0No
Total Requested100067%
Total Not Requested50033%

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